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configure.ac
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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
# ----------------------------------------------------------------------
# Build version string.
# ----------------------------------------------------------------------
m4_define([htop_git_version],
m4_normalize(m4_esyscmd([git describe --abbrev=7 --dirty --always --tags 2> /dev/null || echo ''])))
m4_define([htop_release_version], [3.5.0-dev])
# ----------------------------------------------------------------------
# Autoconf initialization.
# ----------------------------------------------------------------------
AC_PREREQ([2.69])
AC_INIT([htop], [m4_join([-],m4_defn([htop_release_version]),m4_defn([htop_git_version]))], [htop@groups.io], [], [https://htop.dev/])
AC_CONFIG_SRCDIR([htop.c])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_HEADERS([config.h])
AC_CANONICAL_HOST
AM_INIT_AUTOMAKE([-Wall std-options subdir-objects])
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for platform.
# ----------------------------------------------------------------------
case "$host_os" in
linux*|gnu*)
my_htop_platform=linux
AC_DEFINE([HTOP_LINUX], [], [Building for Linux.])
;;
freebsd*|kfreebsd*)
my_htop_platform=freebsd
AC_DEFINE([HTOP_FREEBSD], [], [Building for FreeBSD.])
;;
netbsd*)
my_htop_platform=netbsd
AC_DEFINE([HTOP_NETBSD], [], [Building for NetBSD.])
;;
openbsd*)
my_htop_platform=openbsd
AC_DEFINE([HTOP_OPENBSD], [], [Building for OpenBSD.])
;;
dragonfly*)
my_htop_platform=dragonflybsd
AC_DEFINE([HTOP_DRAGONFLYBSD], [], [Building for DragonFlyBSD.])
;;
darwin*)
my_htop_platform=darwin
AC_DEFINE([HTOP_DARWIN], [], [Building for Darwin.])
;;
solaris*)
my_htop_platform=solaris
AC_DEFINE([HTOP_SOLARIS], [], [Building for Solaris.])
;;
*)
my_htop_platform=unsupported
AC_DEFINE([HTOP_UNSUPPORTED], [], [Building for an unsupported platform.])
;;
esac
# Enable extensions, required by hwloc scripts
AC_USE_SYSTEM_EXTENSIONS
# The header of ncurses exposes wide-character interfaces only if
# _XOPEN_SOURCE_EXTENDED is defined or _XOPEN_SOURCE defined to be
# >= 500. In DragonFly BSD, FreeBSD and OpenBSD, defining
# _XOPEN_SOURCE to any value *hides* interfaces that would be useful
# for htop.
dnl
dnl Note: The "#undef" in AH_VERBATIM will be replaced with "#define"
dnl when config.h is generated.
AH_VERBATIM([_XOPEN_SOURCE_EXTENDED],
[/* Enables XPG4v2 (SUSv1) interfaces if they are not enabled already with _XOPEN_SOURCE */
#ifndef _XOPEN_SOURCE_EXTENDED
#undef _XOPEN_SOURCE_EXTENDED
#endif
])
AC_DEFINE([_XOPEN_SOURCE_EXTENDED], 1)
# Activate some more of the missing global defines
AC_SYS_LARGEFILE
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for compiler.
# ----------------------------------------------------------------------
AC_PROG_CC
AM_PROG_CC_C_O
m4_version_prereq([2.70], [], [AC_PROG_CC_C99])
AS_IF([test "x$ac_cv_prog_cc_c99" = xno], [AC_MSG_ERROR([htop is written in C99. A newer compiler is required.])])
AM_CFLAGS="-std=c99 -pedantic"
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for static build.
# ----------------------------------------------------------------------
AC_ARG_ENABLE([static],
[AS_HELP_STRING([--enable-static],
[build a static htop binary @<:@default=no@:>@])],
[],
[enable_static=no])
case "$enable_static" in
no)
;;
yes)
AC_DEFINE([BUILD_STATIC], [1], [Define if building static binary.])
CFLAGS="$CFLAGS -static"
LDFLAGS="$LDFLAGS -static"
;;
*)
AC_MSG_ERROR([bad value '$enable_static' for --enable-static option])
;;
esac
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for a PCP-based htop build. (https://pcp.io)
# ----------------------------------------------------------------------
AC_ARG_ENABLE([pcp],
[AS_HELP_STRING([--enable-pcp],
[build a pcp-htop binary @<:@default=no@:>@])],
[],
[enable_pcp=no])
case "$enable_pcp" in
no)
;;
yes)
AC_CHECK_HEADERS([pcp/pmapi.h], [my_htop_platform=pcp],
[AC_MSG_ERROR([can not find PCP header file])])
AC_SEARCH_LIBS([pmNewContext], [pcp], [], [AC_MSG_ERROR([can not find PCP library])])
AC_DEFINE([HTOP_PCP], [1], [Define if building pcp-htop binary.])
AC_CONFIG_FILES([pcp-htop.5])
;;
*)
AC_MSG_ERROR([bad value '$enable_pcp' for --enable-pcp option])
;;
esac
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for generic header files.
# ----------------------------------------------------------------------
AC_HEADER_DIRENT
m4_version_prereq([2.70], [AC_CHECK_INCLUDES_DEFAULT], [AC_HEADER_STDC])
AC_CHECK_HEADERS([ \
stdlib.h \
string.h \
strings.h \
sys/param.h \
sys/time.h \
sys/utsname.h \
unistd.h
], [], [AC_MSG_ERROR([can not find required generic header files])])
AC_HEADER_MAJOR
dnl glibc 2.25 deprecates 'major' and 'minor' in <sys/types.h> and requires to
dnl include <sys/sysmacros.h>. However the logic in AC_HEADER_MAJOR has not yet
dnl been updated in Autoconf 2.69, so use a workaround:
m4_version_prereq([2.70], [],
[if test "x$ac_cv_header_sys_mkdev_h" != xyes; then
AC_CHECK_HEADER([sys/sysmacros.h], [AC_DEFINE([MAJOR_IN_SYSMACROS], [1],
[Define to 1 if 'major', 'minor', and 'makedev' are declared in <sys/sysmacros.h>.])])
fi])
# Optional Section
AC_CHECK_HEADERS([execinfo.h])
if test "$my_htop_platform" = darwin; then
AC_CHECK_HEADERS([mach/mach_time.h])
AC_CHECK_HEADERS([mach/thread_info.h])
AC_MSG_CHECKING(for thread_extended_info_data_t)
AC_COMPILE_IFELSE(
AC_LANG_PROGRAM(
[#include <mach/thread_info.h>],
[
thread_extended_info_data_t teid;
(void)teid;
]
),
[
AC_DEFINE([HAVE_THREAD_EXTENDED_INFO_DATA_T], 1, [Define if thread_extended_info_data_t is available from <mach/thread_info.h>])
AC_MSG_RESULT(yes)
],
[
AC_MSG_RESULT(no)
]
)
fi
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for typedefs, structures, and compiler characteristics.
# ----------------------------------------------------------------------
AC_TYPE_MBSTATE_T
AC_TYPE_MODE_T
AC_TYPE_OFF_T
AC_TYPE_PID_T
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_TYPE_UID_T
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
AC_MSG_CHECKING(for alloc_size)
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wno-error -Werror=attributes"
AC_COMPILE_IFELSE([
AC_LANG_SOURCE(
[
/* Attribute supported in GCC 4.3 or later */
__attribute__((alloc_size(1))) char* my_alloc(int size) { return 0; }
],[]
)],
AC_DEFINE([HAVE_ATTR_ALLOC_SIZE], 1, [The alloc_size attribute is supported.])
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))
CFLAGS="$old_CFLAGS"
AC_MSG_CHECKING(for access)
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wno-error -Werror=attributes"
AC_COMPILE_IFELSE([
AC_LANG_SOURCE(
[
/* Attribute supported in GCC 10 or later */
__attribute__((access(read_only, 1, 2))) extern int foo(const char* str, unsigned len);
],[]
)],
AC_DEFINE([HAVE_ATTR_ACCESS], 1, [The access attribute is supported.])
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))
CFLAGS="$old_CFLAGS"
AC_MSG_CHECKING(for nonnull)
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wno-error -Werror=attributes"
AC_COMPILE_IFELSE([
AC_LANG_SOURCE(
[[
/* Attribute supported in GCC 3.3 or later */
__attribute__((nonnull)) int my_strcmp(const char* a, const char* b);
__attribute__((nonnull(1))) long my_strtol(const char* str, char** endptr, int base);
]]
)],
AC_DEFINE([HAVE_ATTR_NONNULL], 1, [The nonnull attribute is supported.])
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))
CFLAGS="$old_CFLAGS"
AC_MSG_CHECKING(for returns_nonnull)
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wno-error -Werror=attributes"
AC_COMPILE_IFELSE([
AC_LANG_SOURCE(
[[
/* Attribute supported in GCC 4.9 or later */
__attribute__((returns_nonnull)) void* foo(void);
]]
)],
AC_DEFINE([HAVE_ATTR_RETNONNULL], 1, [The returns_nonnull attribute is supported.])
AC_MSG_RESULT(yes),
AC_MSG_RESULT(no))
CFLAGS="$old_CFLAGS"
AC_MSG_CHECKING(for NaN support)
dnl Note: AC_RUN_IFELSE does not try compiling the program at all when
dnl $cross_compiling is 'yes'.
AC_LINK_IFELSE([
AC_LANG_PROGRAM(
[[
#include <math.h>
]],
[[
double x = NAN;
/* Both should evaluate to false -> 0 (exit success) */
return isgreater(x, x) || isgreaterequal(x, x);
]]
)],
[flag_finite_math_only=unknown
if test "$cross_compiling" = yes; then
AC_COMPILE_IFELSE([
AC_LANG_SOURCE([[
/* __FINITE_MATH_ONLY__ is documented in Clang. */
#ifdef __FINITE_MATH_ONLY__
#error "should not enable -ffinite-math-only"
#endif
]])],
AC_MSG_RESULT([assume yes (cross compiling)]),
flag_finite_math_only=yes)
elif ./conftest$EXEEXT >&AS_MESSAGE_LOG_FD; then
flag_finite_math_only=no
AC_MSG_RESULT(yes)
else
flag_finite_math_only=yes
fi
if test "$flag_finite_math_only" = yes; then
AC_MSG_RESULT(no)
AC_MSG_WARN([runtime behavior with NaN is not compliant - some functionality might break; consider using '-fno-finite-math-only'])
fi],
[AC_MSG_RESULT(no)
AC_MSG_ERROR([can not find required macros: NAN, isgreater() and isgreaterequal()])])
AC_MSG_CHECKING(for __builtin_ctz)
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([], [[__builtin_ctz(1); /* Supported in GCC 3.4 or later */]])],
[AC_DEFINE([HAVE_BUILTIN_CTZ], 1, [Define to 1 if the compiler supports '__builtin_ctz' function.])
AC_MSG_RESULT(yes)],
AC_MSG_RESULT(no))
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for generic library functions.
# ----------------------------------------------------------------------
AC_SEARCH_LIBS([ceil], [m], [], [AC_MSG_ERROR([can not find required function ceil()])])
if test "$my_htop_platform" = dragonflybsd; then
AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])])
AC_SEARCH_LIBS([getdevs], [devstat], [], [AC_MSG_ERROR([can not find required function getdevs()])])
fi
if test "$my_htop_platform" = freebsd; then
if test "$enable_static" = yes; then
AC_SEARCH_LIBS([elf_version], [elf], [], [AC_MSG_ERROR([can not find required function elf_version()])])
fi
AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])])
AC_SEARCH_LIBS([devstat_checkversion], [devstat], [], [AC_MSG_ERROR([can not find required function devstat_checkversion()])])
fi
if test "$my_htop_platform" = linux; then
if test "$enable_static" != yes; then
AC_SEARCH_LIBS([dlopen], [dl dld], [], [AC_MSG_ERROR([can not find required function dlopen()])])
fi
fi
if test "$my_htop_platform" = netbsd; then
AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])])
AC_SEARCH_LIBS([prop_dictionary_get], [prop], [], [AC_MSG_ERROR([can not find required function prop_dictionary_get()])])
fi
if test "$my_htop_platform" = openbsd; then
AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])])
fi
if test "$my_htop_platform" = solaris; then
AC_SEARCH_LIBS([kstat_open], [kstat], [], [AC_MSG_ERROR([can not find required function kstat_open()])])
AC_SEARCH_LIBS([Pgrab_error], [proc], [], [AC_MSG_ERROR([can not find required function Pgrab_error()])])
AC_SEARCH_LIBS([free], [malloc], [], [AC_MSG_ERROR([can not find required function free()])])
fi
# Optional Section
AC_SEARCH_LIBS([clock_gettime], [rt])
AC_CHECK_FUNCS([ \
clock_gettime \
dladdr \
faccessat \
fstatat \
host_get_clock_service \
memfd_create\
openat \
readlinkat \
sched_getscheduler \
sched_setscheduler \
])
# strchrnul is available in macOS since 15.4, but the user may specify an older
# macOS version ('-mmacos-version-min') to build for. We need to ensure it is
# actually exposed in the header.
htop_save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -Werror"
AC_MSG_CHECKING([for strchrnul])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <string.h>
]], [[
static char ch;
char* ptr = strchrnul(&ch, 0);
return ptr != &ch; /* Should be 0 (exit success) */
]])],
[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_STRCHRNUL], [1], [Define to 1 if you have the 'strchrnul' function.])],
[AC_MSG_RESULT(no)])
CFLAGS=$htop_save_CFLAGS
if test "$my_htop_platform" = darwin; then
AC_CHECK_FUNCS([host_statistics64], [
AC_CHECK_TYPES([struct vm_statistics64], [], [], [[#include <mach/vm_statistics.h>]])
], [])
fi
if test "$my_htop_platform" = pcp; then
AC_CHECK_FUNCS([pmLookupDescs])
fi
if test "$my_htop_platform" = linux && test "x$enable_static" = xyes; then
AC_CHECK_LIB([systemd], [sd_bus_open_system], [], [], [-lcap])
fi
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for cross-platform features and flags.
# ----------------------------------------------------------------------
dnl PKG_PROG_PKG_CONFIG initializes $PKG_CONFIG and related variables.
dnl If the macro is not called, some pkg-config checks might be skipped
dnl and $PKG_CONFIG might be unset.
m4_ifdef([PKG_PROG_PKG_CONFIG], [
PKG_PROG_PKG_CONFIG()
pkg_m4_included=1 # Makefile might grep this keyword. Don't remove.
], [
m4_warn(
[syntax],
[pkg.m4 is absent or older than version 0.16; this 'configure' would have incomplete pkg-config support])
])
AC_ARG_ENABLE([unicode],
[AS_HELP_STRING([--enable-unicode],
[enable Unicode support @<:@default=yes@:>@])],
[],
[enable_unicode=yes])
AC_ARG_VAR([CURSES_CFLAGS], [C compiler flags for curses; this overrides auto detected values])
AC_ARG_VAR([CURSES_LIBS], [linker flags for curses; this overrides auto detected values])
curses_pkg_names="ncurses6 ncurses5 ncurses ncursest6 ncursest5 \
ncursest curses"
if test "x$enable_unicode" = xyes; then
curses_pkg_names="ncursesw6 ncursesw5 ncursesw ncursestw6 ncursestw5 \
ncursestw $curses_pkg_names"
fi
AC_ARG_WITH([curses],
[AS_HELP_STRING([--with-curses=NAME],
[select curses package NAME to link with; e.g. ncursesw6])],
[],
[with_curses=check])
case $with_curses in
check|yes)
: # No-op. Use default list.
;;
no)
AC_MSG_ERROR([bad value '$with_curses' for --with-curses option])
;;
*)
if test "x${CURSES_CFLAGS+y}${CURSES_LIBS+y}" = xyy; then
AC_MSG_WARN([ignoring --with-curses value due to override])
fi
curses_pkg_names=`echo "x$with_curses" | sed 's/^x\(lib\)\{0,1\}//'`
;;
esac
# $1: C preprocessor and compiler flags for curses library
# $2: linker flags for curses library
htop_check_curses_capability () {
htop_curses_cflags=${CURSES_CFLAGS-"$1"}
htop_curses_libs=${CURSES_LIBS-"$2"}
echo "curses cflags${CURSES_CFLAGS+ (override)}: $htop_curses_cflags" >&AS_MESSAGE_LOG_FD
echo "curses libs${CURSES_LIBS+ (override)}: $htop_curses_libs" >&AS_MESSAGE_LOG_FD
htop_msg_linker_flags=$htop_curses_libs
if test "`echo x $htop_msg_linker_flags`" = x; then
htop_msg_linker_flags="(no linker flags)"
fi
htop_curses_status=0 # 0 for success; nonzero for failure
htop_save_CFLAGS=$CFLAGS
htop_save_LIBS=$LIBS
CFLAGS="$AM_CFLAGS $htop_curses_cflags $CFLAGS"
LIBS="$htop_curses_libs $LIBS"
# At this point we have not checked the name of curses header, so
# use forward declaration for the linking tests below.
# htop uses keypad(), but for ncurses implementation, the symbol is
# in "-ltinfo" and not "-lncurses".
# Check "-ltinfo" symbols first, as libncurses might require
# explicit "-ltinfo" to link (for internal dependency).
AC_MSG_CHECKING([for keypad in $htop_msg_linker_flags])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
/* int keypad(WINDOW* win, bool enable); */
int keypad(void* win, int enable);
]], [[
static char dummy;
keypad((void*)&dummy, 0);
]])],
[AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)
htop_curses_status=1])
# htop calls refresh(), which might be implemented as a macro.
# It is more reliable to test linking with doupdate(), which
# refresh() would call internally.
if test "$htop_curses_status" -eq 0; then
AC_MSG_CHECKING([for doupdate in $htop_msg_linker_flags])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
int doupdate(void);
]], [[
doupdate();
]])],
[AC_MSG_RESULT(yes)
htop_curses_capability=nonwide],
[AC_MSG_RESULT(no)
htop_curses_status=1])
fi
# htop calls mvadd_wchnstr(), which might be implemented as a macro.
# It is more reliable to test linking with wadd_wchnstr().
if test "x$htop_curses_status$enable_unicode" = x0yes; then
AC_MSG_CHECKING([for wadd_wchnstr in $htop_msg_linker_flags])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
/* int wadd_wchnstr(WINDOW* win, const cchar_t* wchstr, int n); */
int wadd_wchnstr(void* win, const void* wchstr, int n);
]], [[
static char dummy1;
static char dummy2;
wadd_wchnstr((void*)&dummy1, (void*)&dummy2, 0);
]])],
[AC_MSG_RESULT(yes)
htop_curses_capability=wide],
[AC_MSG_RESULT(no)
htop_curses_status=1])
fi
if test "$htop_curses_status" -eq 0; then
AM_CFLAGS="$AM_CFLAGS $htop_curses_cflags"
if test "$htop_curses_capability" = wide; then
AC_DEFINE([HAVE_LIBNCURSESW], 1, [libncursesw is present])
else
AC_DEFINE([HAVE_LIBNCURSES], 1, [libcurses is present])
fi
else
LIBS=$htop_save_LIBS
fi
CFLAGS=$htop_save_CFLAGS
return "$htop_curses_status"
} # htop_check_curses_capability
htop_curses_capability=none
if test "x${CURSES_CFLAGS+y}${CURSES_LIBS+y}" = xyy; then
curses_pkg_names=""
htop_check_curses_capability "$CURSES_CFLAGS" "$CURSES_LIBS"
fi
# Prioritize $PKG_CONFIG over ncurses*-config, as users might need to
# cross-compile htop.
if test "x$PKG_CONFIG" != x; then
pkg_config_static_flag=""
if test "$enable_static" = yes; then
pkg_config_static_flag=--static
fi
for curses_name in $curses_pkg_names; do
echo retrieving $curses_name information through $PKG_CONFIG >&AS_MESSAGE_LOG_FD
$PKG_CONFIG --exists --print-errors $curses_name >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD || continue
: # Resets "$?" to 0
htop_config_cflags=`$PKG_CONFIG --cflags $pkg_config_static_flag $curses_name 2>/dev/null` || continue
: # Resets "$?" to 0
htop_config_libs=`$PKG_CONFIG --libs $pkg_config_static_flag $curses_name 2>/dev/null` || continue
AC_MSG_RESULT([found $curses_name information through $PKG_CONFIG])
if htop_check_curses_capability "$htop_config_cflags" "$htop_config_libs"; then
break
fi
done
fi
case ${htop_curses_capability}-$enable_unicode in
none-*|nonwide-yes)
for curses_name in $curses_pkg_names; do
echo retrieving $curses_name information through ${curses_name}-config >&AS_MESSAGE_LOG_FD
${curses_name}-config --cflags >/dev/null 2>&AS_MESSAGE_LOG_FD || continue
: # Resets "$?" to 0
htop_config_cflags=`${curses_name}-config --cflags 2>/dev/null` || continue
: # Resets "$?" to 0
htop_config_libs=`${curses_name}-config --libs 2>/dev/null` || continue
AC_MSG_RESULT([found $curses_name information through ${curses_name}-config])
if htop_check_curses_capability "$htop_config_cflags" "$htop_config_libs"; then
break
fi
done
;;
esac
case ${htop_curses_capability}-$enable_unicode in
none-*|nonwide-yes)
if test "x$PKG_CONFIG" = x; then (
# Friendly warning to advise user to install pkg-config.
# The local variables get discarded when done.
list=""
echo "" >conftest.c
if test "$cross_compiling" != yes; then
# "-print-multi-directory" supported in GCC 3.0 or later
name=""
if $CC $CPPFLAGS $CFLAGS -print-multi-directory -E conftest.c >/dev/null 2>&1; then
name=`$CC $CPPFLAGS $CFLAGS -print-multi-directory -E conftest.c 2>/dev/null |
sed '/^ *#/ d; s/^\.$//; q'`
fi
list="/usr/lib${name}/pkgconfig $list"
case $host_os in
darwin*)
list="/opt/homebrew/Library/Homebrew/os/mac/pkgconfig $list"
;;
freebsd*)
list="/usr/libdata/pkgconfig $list"
;;
netbsd*)
list="/usr/pkg/lib/pkgconfig $list"
;;
esac
fi
if test "x$host_alias" != x; then
list="/usr/lib/${host_alias}/pkgconfig $list"
fi
# "-print-multiarch" supported in GCC 4.6 or later
if $CC $CPPFLAGS $CFLAGS -print-multiarch -E conftest.c >/dev/null 2>&1; then
name=`$CC $CPPFLAGS $CFLAGS -print-multiarch -E conftest.c 2>/dev/null |
sed '/^ *#/ d; q'`
if test "x$name" != x; then
list="/usr/lib/${name}/pkgconfig $list"
fi
fi
rm -f conftest.*
for d in $list; do
result=`find "$d" -name '*curses*.pc' 2>/dev/null | sed '1 q'`
if test "x$result" != x; then
echo detected a .pc file: "$result" >&AS_MESSAGE_LOG_FD
AC_MSG_WARN([your system supports pkg-config; installing pkg-config is recommended before configuring htop])
m4_ifdef([PKG_PROG_PKG_CONFIG], [], [
AC_MSG_WARN([this configure script would also need to be regenerated])
])
break
fi
done
) fi
# OpenBSD and Solaris are known to not provide '*curses*.pc' files.
AC_MSG_RESULT([no curses information found through '*-config' utilities; will guess the linker flags])
for curses_name in $curses_pkg_names; do
if htop_check_curses_capability "" "-l$curses_name"; then
break
fi
# For ncurses implementation, an extra terminfo library might be
# needed. Guess the terminfo library name based on the ncurses
# library file name (e.g. "-ltinfow" for "-lncursesw"), before
# trying the "-ltinfo" name.
tinfo_name=`echo x$curses_name | sed 's/^xncurses/tinfo/p; d'`
case x$tinfo_name in
x|xtinfo)
;;
*)
if htop_check_curses_capability "" "-l$curses_name -l$tinfo_name"; then
break
fi
;;
esac
if htop_check_curses_capability "" "-l$curses_name -ltinfo"; then
break
fi
done
;;
esac
case ${htop_curses_capability}-$enable_unicode in
nonwide-yes)
AC_MSG_ERROR([cannot find required ncursesw library; you may want to use --disable-unicode])
;;
none-*)
AC_MSG_ERROR([cannot find required curses/ncurses library])
;;
esac
htop_save_CFLAGS=$CFLAGS
CFLAGS="$AM_CFLAGS $CFLAGS"
if test "x$enable_unicode" = xyes; then
AC_CHECK_HEADERS([ncursesw/curses.h], [],
[AC_CHECK_HEADERS([ncurses/ncurses.h], [],
[AC_CHECK_HEADERS([ncurses/curses.h], [],
[AC_CHECK_HEADERS([ncurses.h], [],
[AC_MSG_ERROR([can not find required ncurses header file])])])])])
AC_CHECK_HEADERS([ncursesw/term.h], [],
[AC_CHECK_HEADERS([ncurses/term.h], [],
[AC_CHECK_HEADERS([term.h], [],
[AC_MSG_ERROR([can not find required term header file])])])])
else
AC_CHECK_HEADERS([curses.h], [],
[AC_CHECK_HEADERS([ncurses/curses.h], [],
[AC_CHECK_HEADERS([ncurses/ncurses.h], [],
[AC_CHECK_HEADERS([ncurses.h], [],
[AC_MSG_ERROR([can not find required ncurses header file])])])])])
AC_CHECK_HEADERS([ncurses/term.h], [],
[AC_CHECK_HEADERS([term.h], [],
[AC_MSG_ERROR([can not find required term header file])])])
fi
CFLAGS="-I$srcdir $CFLAGS"
# Check for things that might be macros.
# "stdscr" is a macro in ncursest (reentrant version of ncurses).
AC_MSG_CHECKING([whether the curses header works])
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
/* Checks if the "bool" definition in curses is ISO C compatible */
#include <stdbool.h>
#include "ProvideCurses.h"
]], [[
keypad(stdscr, false);
refresh();
#if defined(HAVE_LIBNCURSESW)
{
static cchar_t dummy;
mvadd_wchnstr(0, 0, &dummy, 0);
}
#endif
]])],
[AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no)
AC_MSG_FAILURE([there are problems with the curses header])]
)
CFLAGS=$htop_save_CFLAGS
if test "$enable_static" = yes; then
AC_SEARCH_LIBS([Gpm_GetEvent], [gpm])
fi
if test "$my_htop_platform" = "solaris"; then
# On OmniOS /usr/include/sys/regset.h redefines ERR to 13 - \r, breaking the Enter key.
# Since ncurses macros use the ERR macro, we can not use another name.
AC_DEFINE([ERR], [(-1)], [Predefine ncurses macro.])
fi
AC_CHECK_FUNCS( [set_escdelay] )
AC_CHECK_FUNCS( [getmouse] )
AC_DEFINE([NCURSES_ENABLE_STDBOOL_H], [1], [Define to enable stdbool.h in ncurses])
AC_ARG_ENABLE([affinity],
[AS_HELP_STRING([--enable-affinity],
[enable sched_setaffinity and sched_getaffinity for affinity support, conflicts with hwloc @<:@default=check@:>@])],
[],
[enable_affinity=check])
if test "x$enable_affinity" = xcheck; then
if test "x$enable_hwloc" = xyes; then
enable_affinity=no
else
AC_MSG_CHECKING([for usable sched_setaffinity])
AC_RUN_IFELSE([
AC_LANG_PROGRAM([[
#include <sched.h>
#include <errno.h>
static cpu_set_t cpuset;
]], [[
CPU_ZERO(&cpuset);
sched_setaffinity(0, sizeof(cpu_set_t), &cpuset);
if (errno == ENOSYS) return 1;
]])],
[enable_affinity=yes
AC_MSG_RESULT([yes])],
[enable_affinity=no
AC_MSG_RESULT([no])],
[AC_MSG_RESULT([assume yes (cross compiling)])])
fi
fi
if test "x$enable_affinity" = xyes; then
if test "x$enable_hwloc" = xyes; then
AC_MSG_ERROR([--enable-hwloc and --enable-affinity are mutual exclusive. Specify at most one of them.])
fi
AC_DEFINE([HAVE_AFFINITY], [1], [Define if sched_setaffinity and sched_getaffinity are to be used.])
fi
AC_ARG_ENABLE([unwind],
[AS_HELP_STRING([--enable-unwind],
[enable unwind support for printing backtraces; requires libunwind @<:@default=check@:>@])],
[],
[enable_unwind=check])
case "$enable_unwind" in
check)
enable_unwind=yes
if test "$enable_static" = yes; then
AC_CHECK_LIB([lzma], [lzma_index_buffer_decode])
fi
AC_CHECK_LIB([unwind], [backtrace], [], [enable_unwind=no])
AC_CHECK_HEADERS([libunwind.h], [], [
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -I/usr/include/libunwind"
AC_CHECK_HEADERS([libunwind/libunwind.h], [], [
enable_unwind=no
CFLAGS="$old_CFLAGS"
])
])
;;
no)
;;
yes)
AC_CHECK_LIB([unwind], [backtrace], [], [AC_MSG_ERROR([can not find required library libunwind])])
AC_CHECK_HEADERS([libunwind.h], [], [
AM_CFLAGS="$AM_CFLAGS -I/usr/include/libunwind"
AC_CHECK_HEADERS([libunwind/libunwind.h], [], [AC_MSG_ERROR([can not find required header file libunwind.h])])
])
;;
*)
AC_MSG_ERROR([bad value '$enable_unwind' for --enable-unwind])
;;
esac
if test "x$enable_unwind" = xno; then
# Fall back to backtrace(3) and add -lexecinfo if needed
AC_SEARCH_LIBS([backtrace], [execinfo])
AC_MSG_CHECKING([the return type of backtrace])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#ifndef BACKTRACE_RETURN_TYPE
#error "BACKTRACE_RETURN_TYPE not defined"
#endif
]])],
[AC_MSG_RESULT([user defined])],
[htop_save_CFLAGS=$CFLAGS
CFLAGS="$AM_CFLAGS $CFLAGS -Werror"
# Use 'typeof' if supported. Otherwise guess types from larger bit width
# to smaller.
# 'size_t' is used in FreeBSD, NetBSD and OpenBSD.
# 'int' is used in Linux (with glibc) and macOS.
# See also: Gnulib documentation of 'backtrace'
# (https://www.gnu.org/software/gnulib/manual/html_node/backtrace.html).
# GCC (< 15) had a bug that warns on a non-null pointer in 'typeof'.
# Workaround by passing an address of 1 instead.
for backtrace_return_type in \
"typeof(backtrace((void**)1, 0))" \
"__typeof__(backtrace((void**)1, 0))" \
"__typeof(backtrace((void**)1, 0))" \
size_t \
int \
; do
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <execinfo.h>
#include <stddef.h> /* For size_t */
]],[[
#define BACKTRACE_RETURN_TYPE $backtrace_return_type
/* Assuming the second argument of backtrace_symbols() would use the same type
as the return type of backtrace(). */
static char** (*func)(void* const*, BACKTRACE_RETURN_TYPE) = backtrace_symbols;
static void* addr;
BACKTRACE_RETURN_TYPE nptrs = backtrace(&addr, 1);
(void)nptrs;
]])],
[AC_DEFINE_UNQUOTED([BACKTRACE_RETURN_TYPE], [$backtrace_return_type], [Defined to the return type of the 'backtrace' function.])
break],
[backtrace_return_type=""])
done
backtrace_return_type_msg=`echo "x$backtrace_return_type" | sed '
s/^x *//
s/^$/not available/
s/^\(_*typeof_*\) *( *backtrace( *( *void *\* *\* *) *1 *, *0 *) *) *$/automatic (using \1)/'`
AC_MSG_RESULT([$backtrace_return_type_msg])
CFLAGS=$htop_save_CFLAGS])
fi
AC_ARG_ENABLE([hwloc],
[AS_HELP_STRING([--enable-hwloc],
[enable hwloc support for CPU affinity; disables affinity support; requires libhwloc @<:@default=no@:>@])],
[],
[enable_hwloc=no])
case "$enable_hwloc" in
no)
;;
yes)
m4_ifdef([PKG_PROG_PKG_CONFIG], [
PKG_CHECK_MODULES(HWLOC, hwloc, [
AM_CFLAGS="$AM_CFLAGS $HWLOC_CFLAGS"
LIBS="$LIBS $HWLOC_LIBS"
AC_DEFINE([HAVE_LIBHWLOC], [1], [Define to 1 if you have the 'hwloc' library (-lhwloc).])
], [
AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [AC_MSG_ERROR([can not find required library libhwloc])])
AC_CHECK_HEADERS([hwloc.h], [], [AC_MSG_ERROR([can not find require header file hwloc.h])])
])
], [
AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [AC_MSG_ERROR([can not find required library libhwloc])])
AC_CHECK_HEADERS([hwloc.h], [], [AC_MSG_ERROR([can not find require header file hwloc.h])])
])
;;
*)
AC_MSG_ERROR([bad value '$enable_hwloc' for --enable-hwloc])
;;
esac
AC_ARG_WITH([os-release],
[AS_HELP_STRING([--with-os-release=FILE],
[location of an os-release file @<:@default=/etc/os-release@:>@])],
[],
[with_os_release=/etc/os-release])
if test -n "$with_os_release" && test ! -f "$with_os_release"; then
if test -f "/usr/lib/os-release"; then
with_os_release="/usr/lib/os-release"
fi
fi
AC_DEFINE_UNQUOTED([OSRELEASEFILE], ["$with_os_release"], [File with OS release details.])
AC_ARG_WITH([config],
[AS_HELP_STRING([--with-config=DIR],
[configuration path @<:@default=/.config@:>@])],
[],
[with_config="/.config"])
dnl Performance Co-Pilot configuration location to prevent overwrite
if test "$my_htop_platform" = pcp -a "$with_config" = /.config; then
with_config="/.pcp"
elif test -z "$with_config"; then
AC_MSG_ERROR([bad empty value for --with-config option])
fi
AC_DEFINE_UNQUOTED([CONFIGDIR], ["$with_config"], [Configuration path.])
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for Linux features and flags.
# ----------------------------------------------------------------------
AC_ARG_WITH([proc],
[AS_HELP_STRING([--with-proc=DIR],
[location of a Linux-compatible proc filesystem @<:@default=/proc@:>@])],
[],
[with_proc=/proc])
if test -z "$with_proc"; then
AC_MSG_ERROR([bad empty value for --with-proc option])
fi
AC_DEFINE_UNQUOTED([PROCDIR], ["$with_proc"], [Path of proc filesystem.])
AC_ARG_ENABLE([openvz],
[AS_HELP_STRING([--enable-openvz],
[enable OpenVZ support @<:@default=no@:>@])],
[],
[enable_openvz=no])
if test "x$enable_openvz" = xyes; then
AC_DEFINE([HAVE_OPENVZ], [1], [Define if openvz support enabled.])
fi
AC_ARG_ENABLE([vserver],
[AS_HELP_STRING([--enable-vserver],
[enable VServer support @<:@default=no@:>@])],
[],
[enable_vserver=no])
if test "x$enable_vserver" = xyes; then
AC_DEFINE([HAVE_VSERVER], [1], [Define if VServer support enabled.])
fi
AC_ARG_ENABLE([ancient_vserver],
[AS_HELP_STRING([--enable-ancient-vserver],