configure: reformat for improved reabability

This commit is contained in:
Christian Göttsche 2021-01-22 19:14:50 +01:00
parent 5e103ff9d1
commit f3623b7880

View File

@ -1,8 +1,12 @@
# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ(2.65)
AC_INIT([htop],[3.0.6-dev],[htop@groups.io])
# ----------------------------------------------------------------------
# Autoconf initialization.
# ----------------------------------------------------------------------
AC_PREREQ([2.65])
AC_INIT([htop], [3.0.6-dev], [htop@groups.io])
AC_CONFIG_SRCDIR([htop.c])
AC_CONFIG_AUX_DIR([.])
@ -13,97 +17,56 @@ AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE([1.11])
# Checks for programs.
# ----------------------------------------------------------------------
AC_PROG_CC
AM_PROG_CC_C_O
# ----------------------------------------------------------------------
# Checks for platform.
# ----------------------------------------------------------------------
case "$target_os" in
linux*|gnu*)
my_htop_platform=linux
AC_DEFINE([HTOP_LINUX], [], [Building for Linux.])
;;
freebsd*|kfreebsd*)
my_htop_platform=freebsd
AC_DEFINE([HTOP_FREEBSD], [], [Building for FreeBSD.])
;;
openbsd*)
my_htop_platform=openbsd
AC_DEFINE([HTOP_OPENBSD], [], [Building for OpenBSD.])
;;
dragonfly*)
my_htop_platform=dragonflybsd
AC_DEFINE([HTOP_DRAGONFLYBSD], [], [Building for DragonFlyBSD.])
;;
darwin*)
my_htop_platform=darwin
AC_DEFINE([HTOP_DARWIN], [], [Building for Darwin.])
;;
solaris*)
my_htop_platform=solaris
AC_DEFINE([HTOP_SOLARIS], [], [Building for Solaris.])
;;
*)
my_htop_platform=unsupported
AC_DEFINE([HTOP_UNSUPPORTED], [], [Building for an unsupported platform.])
;;
esac
# Required by hwloc scripts
AC_USE_SYSTEM_EXTENSIONS
# Checks for platform.
# ----------------------------------------------------------------------
case "$target_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])
;;
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
# Checks for libraries.
# ----------------------------------------------------------------------
AC_CHECK_LIB([m], [ceil], [], [missing_libraries="$missing_libraries libm"])
# Checks for header files.
# Checks for compiler.
# ----------------------------------------------------------------------
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_CHECK_HEADERS([stdlib.h string.h strings.h sys/param.h sys/time.h unistd.h],[:],[
missing_headers="$missing_headers $ac_header"
])
AC_CHECK_HEADERS([execinfo.h],[:],[:])
AC_HEADER_MAJOR
dnl glibc 2.25 deprecates 'major' and 'minor' in <sys/types.h> and requires to
dnl include <sys/sysmacros.h>. However the logic in AC_HEADER_MAJOR has not yet
dnl been updated in Autoconf 2.69, so use a workaround:
m4_version_prereq([2.70], [],
[if test "x$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])
# Checks for typedefs, structures, and compiler characteristics.
# ----------------------------------------------------------------------
AC_HEADER_STDBOOL
AC_C_CONST
AC_TYPE_PID_T
AC_TYPE_UID_T
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
# Checks for library functions and compiler features.
# ----------------------------------------------------------------------
AC_FUNC_CLOSEDIR_VOID
AC_FUNC_STAT
AC_SEARCH_LIBS([dlopen], [dl dld])
AC_SEARCH_LIBS([clock_gettime], [rt])
AC_CHECK_FUNCS([\
clock_gettime\
faccessat\
fstatat\
host_get_clock_service\
openat\
readlinkat\
])
AC_PROG_CC
AM_PROG_CC_C_O
save_cflags="${CFLAGS}"
CFLAGS="${CFLAGS} -std=c99"
@ -114,52 +77,119 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[AC_MSG_ERROR([htop is written in C99. A newer compiler is required.])])
CFLAGS="$save_cflags"
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for generic header files.
# ----------------------------------------------------------------------
AC_HEADER_DIRENT
AC_HEADER_STDC
AC_CHECK_HEADERS([ \
stdlib.h \
string.h \
strings.h \
sys/param.h \
sys/time.h \
unistd.h
], [], [missing_headers="$missing_headers $ac_header"])
AC_HEADER_MAJOR
dnl glibc 2.25 deprecates 'major' and 'minor' in <sys/types.h> and requires to
dnl include <sys/sysmacros.h>. However the logic in AC_HEADER_MAJOR has not yet
dnl been updated in Autoconf 2.69, so use a workaround:
m4_version_prereq([2.70], [],
[if test "x$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 "$my_htop_platform" = darwin; then
AC_CHECK_HEADERS([mach/mach_time.h])
fi
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for typedefs, structures, and compiler characteristics.
# ----------------------------------------------------------------------
AC_HEADER_STDBOOL
AC_C_CONST
AC_TYPE_PID_T
AC_TYPE_UID_T
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for generic library functions.
# ----------------------------------------------------------------------
AC_FUNC_CLOSEDIR_VOID
AC_FUNC_STAT
AC_CHECK_LIB([m], [ceil], [], [missing_libraries="$missing_libraries libm"])
if test "$my_htop_platform" = dragonflybsd; then
AC_SEARCH_LIBS([kvm_open], [kvm], [], [missing_libraries="$missing_libraries libkvm"])
fi
if test "$my_htop_platform" = freebsd; then
AC_SEARCH_LIBS([kvm_open], [kvm], [], [missing_libraries="$missing_libraries libkvm"])
AC_SEARCH_LIBS([devstat_checkversion], [devstat], [], [missing_libraries="$missing_libraries libdevstat"])
fi
if test "$my_htop_platform" = linux; then
AC_SEARCH_LIBS([dlopen], [dl dld], [], [missing_libraries="$missing_libraries libdl/libdld"])
fi
if test "$my_htop_platform" = openbsd; then
AC_SEARCH_LIBS([kvm_open], [kvm], [], [missing_libraries="$missing_libraries libkvm"])
fi
if test "$my_htop_platform" = solaris; then
AC_SEARCH_LIBS([kstat_open], [kstat], [], [missing_libraries="$missing_libraries libkstat"])
AC_SEARCH_LIBS([Pgrab_error], [proc], [], [missing_libraries="$missing_libraries libproc"])
AC_SEARCH_LIBS([free], [malloc], [], [missing_libraries="$missing_libraries libmalloc"])
fi
# Optional Section
AC_SEARCH_LIBS([clock_gettime], [rt])
AC_CHECK_FUNCS([ \
clock_gettime \
faccessat \
fstatat \
host_get_clock_service \
openat \
readlinkat \
])
# Add -lexecinfo if needed
AC_SEARCH_LIBS([backtrace], [execinfo])
# Add -ldevstat if needed
AC_SEARCH_LIBS([devstat_checkversion], [devstat])
if test "$my_htop_platform" = darwin; then
AC_CHECK_FUNCS([mach_timebase_info])
fi
# Checks for 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],
[enable ancient VServer support (implies --enable-vserver) @<:@default=no@:>@])],
[],
[enable_ancient_vserver=no])
if test "x$enable_ancient_vserver" = xyes; then
AC_DEFINE([HAVE_VSERVER], [1], [Define if vserver support enabled.])
AC_DEFINE([HAVE_ANCIENT_VSERVER], [1], [Define if ancient vserver support enabled.])
fi
# ----------------------------------------------------------------------
# Checks for cross-platform features and flags.
# ----------------------------------------------------------------------
# HTOP_CHECK_SCRIPT(LIBNAME, FUNCTION, DEFINE, CONFIG_SCRIPT, ELSE_PART)
m4_define([HTOP_CHECK_SCRIPT],
@ -201,23 +231,6 @@ m4_define([HTOP_CHECK_LIB],
], [$4])
])
dnl https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
AC_DEFUN([AX_CHECK_COMPILE_FLAG],
[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
_AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
[AS_VAR_SET(CACHEVAR,[yes])],
[AS_VAR_SET(CACHEVAR,[no])])
_AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
AS_VAR_IF(CACHEVAR,yes,
[m4_default([$2], :)],
[m4_default([$3], :)])
AS_VAR_POPDEF([CACHEVAR])dnl
])dnl AX_CHECK_COMPILE_FLAGS
AC_ARG_ENABLE([unicode],
[AS_HELP_STRING([--enable-unicode],
[enable Unicode support @<:@default=yes@:>@])],
@ -261,28 +274,6 @@ else
AC_SEARCH_LIBS([keypad], [tinfo])
fi
if test "$my_htop_platform" = "darwin"; then
AC_CHECK_HEADERS([mach/mach_time.h])
AC_CHECK_FUNCS([mach_timebase_info])
fi
if test "$my_htop_platform" = "dragonflybsd"; then
AC_CHECK_LIB([kvm], [kvm_open], [], [missing_libraries="$missing_libraries libkvm"])
fi
if test "$my_htop_platform" = "freebsd"; then
AC_CHECK_LIB([kvm], [kvm_open], [], [missing_libraries="$missing_libraries libkvm"])
fi
if test "$my_htop_platform" = "openbsd"; then
AC_CHECK_LIB([kvm], [kvm_open], [], [missing_libraries="$missing_libraries libkvm"])
fi
if test "$my_htop_platform" = "solaris"; then
AC_CHECK_LIB([kstat], [kstat_open], [], [missing_libraries="$missing_libraries libkstat"])
AC_CHECK_LIB([proc], [Pgrab_error], [], [missing_libraries="$missing_libraries libproc"])
AC_CHECK_LIB([malloc], [free], [], [missing_libraries="$missing_libraries libmalloc"])
fi
AC_ARG_ENABLE([hwloc],
[AS_HELP_STRING([--enable-hwloc],
@ -301,6 +292,65 @@ case "$enable_hwloc" in
;;
esac
AC_ARG_ENABLE([setuid],
[AS_HELP_STRING([--enable-setuid],
[enable setuid support for privilege dropping @<:@default=no@:>@])],
[],
[enable_setuid=no])
if test "x$enable_setuid" = xyes; then
AC_DEFINE([HAVE_SETUID_ENABLED], [1], [Define if setuid support should be enabled.])
fi
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# 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],
[enable ancient VServer support (implies --enable-vserver) @<:@default=no@:>@])],
[],
[enable_ancient_vserver=no])
if test "x$enable_ancient_vserver" = xyes; then
AC_DEFINE([HAVE_VSERVER], [1], [Define if VServer support enabled.])
AC_DEFINE([HAVE_ANCIENT_VSERVER], [1], [Define if ancient vserver support enabled.])
fi
AC_ARG_ENABLE([linux_affinity],
[AS_HELP_STRING([--enable-linux-affinity],
[enable Linux sched_setaffinity and sched_getaffinity for affinity support, conflicts with hwloc @<:@default=check@:>@])],
@ -335,14 +385,6 @@ if test "x$enable_linux_affinity" = xyes; then
AC_DEFINE([HAVE_LINUX_AFFINITY], [1], [Define if Linux sched_setaffinity and sched_getaffinity are to be used.])
fi
AC_ARG_ENABLE([setuid],
[AS_HELP_STRING([--enable-setuid],
[enable setuid support for privilege dropping @<:@default=no@:>@])],
[],
[enable_setuid=no])
if test "x$enable_setuid" = xyes; then
AC_DEFINE([HAVE_SETUID_ENABLED], [1], [Define if setuid support should be enabled.])
fi
AC_ARG_ENABLE([capabilities],
[AS_HELP_STRING([--enable-capabilities],
@ -366,6 +408,7 @@ case "$enable_capabilities" in
;;
esac
AC_ARG_ENABLE([delayacct],
[AS_HELP_STRING([--enable-delayacct],
[enable Linux delay accounting support; requires pkg-config, libnl-3 and libnl-genl-3 @<:@default=check@:>@])],
@ -409,6 +452,7 @@ case "$enable_delayacct" in
;;
esac
AC_ARG_ENABLE([sensors],
[AS_HELP_STRING([--enable-sensors],
[enable libsensors support for reading temperature data; requires only libsensors headers at compile time, at runtime libsensors is loaded via dlopen @<:@default=check@:>@])],
@ -429,6 +473,12 @@ case "$enable_sensors" in
;;
esac
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Checks for compiler warnings.
# ----------------------------------------------------------------------
AM_CFLAGS="\
-Wall\
@ -448,6 +498,23 @@ AM_CFLAGS="\
-Wunused\
-Wwrite-strings"
dnl https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
AC_DEFUN([AX_CHECK_COMPILE_FLAG],
[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
_AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
[AS_VAR_SET(CACHEVAR,[yes])],
[AS_VAR_SET(CACHEVAR,[no])])
_AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
AS_VAR_IF(CACHEVAR,yes,
[m4_default([$2], :)],
[m4_default([$3], :)])
AS_VAR_POPDEF([CACHEVAR])dnl
])dnl AX_CHECK_COMPILE_FLAGS
AX_CHECK_COMPILE_FLAG([-Wnull-dereference], [AM_CFLAGS="$AM_CFLAGS -Wnull-dereference"], , [-Werror])
AC_ARG_ENABLE([werror],
@ -468,12 +535,17 @@ if test "x$enable_debug" != xyes; then
AM_CPPFLAGS="$AM_CPPFLAGS -DNDEBUG"
fi
AC_SUBST([AM_CFLAGS])
AC_SUBST([AM_CPPFLAGS])
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# Bail out on errors.
# ----------------------------------------------------------------------
if test ! -z "$missing_libraries"; then
AC_MSG_ERROR([missing libraries: $missing_libraries])
fi
@ -481,10 +553,15 @@ if test ! -z "$missing_headers"; then
AC_MSG_ERROR([missing headers: $missing_headers])
fi
AC_DEFINE_UNQUOTED(COPYRIGHT, "(C) 2004-2019 Hisham Muhammad. (C) 2020-2021 htop dev team.", [Copyright message.])
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# We're done, let's go!
# ----------------------------------------------------------------------
AC_DEFINE_UNQUOTED([COPYRIGHT], ["(C) 2004-2019 Hisham Muhammad. (C) 2020-2021 htop dev team."], [Copyright message.])
AM_CONDITIONAL([HTOP_LINUX], [test "$my_htop_platform" = linux])
AM_CONDITIONAL([HTOP_FREEBSD], [test "$my_htop_platform" = freebsd])
AM_CONDITIONAL([HTOP_DRAGONFLYBSD], [test "$my_htop_platform" = dragonflybsd])
@ -496,7 +573,7 @@ AC_SUBST(my_htop_platform)
AC_CONFIG_FILES([Makefile htop.1])
AC_OUTPUT
if test "$my_htop_platform" = "unsupported"; then
if test "$my_htop_platform" = unsupported; then
echo ""
echo "****************************************************************"
echo "WARNING! This platform is not currently supported by htop."