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configure: overhaul option handling

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Switch Linux capabilities default from "no" to "check"

Document default settings

Use more readable formatting
This commit is contained in:
Christian Göttsche
2021-01-22 19:14:46 +01:00
parent 0f04714a03
commit 5e103ff9d1
3 changed files with 230 additions and 74 deletions
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233
configure.ac
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@ -122,29 +122,43 @@ AC_SEARCH_LIBS([devstat_checkversion], [devstat])
# Checks for features and flags.
# ----------------------------------------------------------------------
PROCDIR=/proc
AC_ARG_WITH(proc, [AS_HELP_STRING([--with-proc=DIR], [Location of a Linux-compatible proc filesystem (default=/proc).])],
if test -n "$withval"; then
AC_DEFINE_UNQUOTED(PROCDIR, "$withval", [Path of proc filesystem])
PROCDIR="$withval"
fi,
AC_DEFINE(PROCDIR, "/proc", [Path of proc filesystem]))
AC_ARG_WITH([proc],
[AS_HELP_STRING([--with-proc=DIR],
[location of a Linux-compatible proc filesystem @<:@default=/proc@:>@])],
[],
[with_proc=/proc])
if test -z "$with_proc"; then
AC_MSG_ERROR([bad empty value for --with-proc option])
fi
AC_DEFINE_UNQUOTED([PROCDIR], ["$with_proc"], [Path of proc filesystem.])
AC_ARG_ENABLE(openvz, [AS_HELP_STRING([--enable-openvz], [enable OpenVZ support])], ,enable_openvz="no")
AC_ARG_ENABLE([openvz],
[AS_HELP_STRING([--enable-openvz],
[enable OpenVZ support @<:@default=no@:>@])],
[],
[enable_openvz=no])
if test "x$enable_openvz" = xyes; then
AC_DEFINE(HAVE_OPENVZ, 1, [Define if openvz support enabled.])
AC_DEFINE([HAVE_OPENVZ], [1], [Define if openvz support enabled.])
fi
AC_ARG_ENABLE(vserver, [AS_HELP_STRING([--enable-vserver], [enable VServer support])], ,enable_vserver="no")
AC_ARG_ENABLE([vserver],
[AS_HELP_STRING([--enable-vserver],
[enable VServer support @<:@default=no@:>@])],
[],
[enable_vserver=no])
if test "x$enable_vserver" = xyes; then
AC_DEFINE(HAVE_VSERVER, 1, [Define if vserver support enabled.])
AC_DEFINE([HAVE_VSERVER], [1], [Define if vserver support enabled.])
fi
AC_ARG_ENABLE(ancient_vserver, [AS_HELP_STRING([--enable-ancient-vserver], [enable ancient VServer support (implies --enable-vserver)])], ,enable_ancient_vserver="no")
AC_ARG_ENABLE([ancient_vserver],
[AS_HELP_STRING([--enable-ancient-vserver],
[enable ancient VServer support (implies --enable-vserver) @<:@default=no@:>@])],
[],
[enable_ancient_vserver=no])
if test "x$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.])
AC_DEFINE([HAVE_VSERVER], [1], [Define if vserver support enabled.])
AC_DEFINE([HAVE_ANCIENT_VSERVER], [1], [Define if ancient vserver support enabled.])
fi
# HTOP_CHECK_SCRIPT(LIBNAME, FUNCTION, DEFINE, CONFIG_SCRIPT, ELSE_PART)
@ -204,7 +218,11 @@ AS_VAR_IF(CACHEVAR,yes,
AS_VAR_POPDEF([CACHEVAR])dnl
])dnl AX_CHECK_COMPILE_FLAGS
AC_ARG_ENABLE(unicode, [AS_HELP_STRING([--enable-unicode], [enable Unicode support])], ,enable_unicode="yes")
AC_ARG_ENABLE([unicode],
[AS_HELP_STRING([--enable-unicode],
[enable Unicode support @<:@default=yes@:>@])],
[],
[enable_unicode=yes])
if test "x$enable_unicode" = xyes; then
HTOP_CHECK_SCRIPT([ncursesw6], [addnwstr], [HAVE_LIBNCURSESW], "ncursesw6-config",
HTOP_CHECK_SCRIPT([ncursesw], [addnwstr], [HAVE_LIBNCURSESW], "ncursesw6-config",
@ -266,13 +284,28 @@ if test "$my_htop_platform" = "solaris"; then
AC_CHECK_LIB([malloc], [free], [], [missing_libraries="$missing_libraries libmalloc"])
fi
AC_ARG_ENABLE(hwloc, [AS_HELP_STRING([--enable-hwloc], [enable hwloc support for CPU affinity, disables Linux affinity])],, enable_hwloc="no")
if test "x$enable_hwloc" = xyes; then
AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [missing_libraries="$missing_libraries libhwloc"])
AC_CHECK_HEADERS([hwloc.h],[:], [missing_headers="$missing_headers $ac_header"])
fi
AC_ARG_ENABLE([hwloc],
[AS_HELP_STRING([--enable-hwloc],
[enable hwloc support for CPU affinity; disables Linux affinity; requires libhwloc @<:@default=no@:>@])],
[],
[enable_hwloc=no])
case "$enable_hwloc" in
no)
;;
yes)
AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [missing_libraries="$missing_libraries libhwloc"])
AC_CHECK_HEADERS([hwloc.h], [], [missing_headers="$missing_headers $ac_header"])
;;
*)
AC_MSG_ERROR([bad value '$enable_hwloc' for --enable-hwloc])
;;
esac
AC_ARG_ENABLE(linux_affinity, [AS_HELP_STRING([--enable-linux-affinity], [enable Linux sched_setaffinity and sched_getaffinity for affinity support, conflicts with hwloc])], ,enable_linux_affinity="check")
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@:>@])],
[],
[enable_linux_affinity=check])
if test "x$enable_linux_affinity" = xcheck; then
if test "x$enable_hwloc" = xyes; then
enable_linux_affinity=no
@ -296,48 +329,106 @@ if test "x$enable_linux_affinity" = xcheck; then
fi
fi
if test "x$enable_linux_affinity" = xyes; then
AC_DEFINE(HAVE_LINUX_AFFINITY, 1, [Define if Linux sched_setaffinity and sched_getaffinity are to be used.])
if test "x$enable_hwloc" = xyes; then
AC_MSG_ERROR([--enable-hwloc and --enable-linux-affinity are mutual exclusive. Specify at most one of them.])
fi
AC_DEFINE([HAVE_LINUX_AFFINITY], [1], [Define if Linux sched_setaffinity and sched_getaffinity are to be used.])
fi
if test "x$enable_linux_affinity" = xyes -a "x$enable_hwloc" = xyes; then
AC_MSG_ERROR([--enable-hwloc and --enable-linux-affinity are mutual exclusive. Specify at most one of them.])
fi
AC_ARG_ENABLE(setuid, [AS_HELP_STRING([--enable-setuid], [enable setuid support for platforms that need it])],, enable_setuid="no")
AC_ARG_ENABLE([setuid],
[AS_HELP_STRING([--enable-setuid],
[enable setuid support for privilege dropping @<:@default=no@:>@])],
[],
[enable_setuid=no])
if test "x$enable_setuid" = xyes; then
AC_DEFINE(HAVE_SETUID_ENABLED, 1, [Define if setuid support should be enabled.])
AC_DEFINE([HAVE_SETUID_ENABLED], [1], [Define if setuid support should be enabled.])
fi
AC_ARG_WITH(capabilities, [AS_HELP_STRING([--with-capabilities], [Enable option to drop Linux capabilities via libcap])],, with_capabilities="no")
if test "x$with_capabilities" = xyes
then
AC_CHECK_LIB([cap], [cap_init], [], [missing_libraries="$missing_libraries libcap"])
AC_CHECK_HEADERS([sys/capability.h], [:], [missing_headers="$missing_headers $ac_header"])
fi
AC_ARG_ENABLE([capabilities],
[AS_HELP_STRING([--enable-capabilities],
[enable Linux capabilities support; requires libcap @<:@default=check@:>@])],
[],
[enable_capabilities=check])
case "$enable_capabilities" in
no)
;;
check)
enable_capabilities=yes
AC_CHECK_LIB([cap], [cap_init], [], [enable_capabilities=no])
AC_CHECK_HEADERS([sys/capability.h], [], [enable_capabilities=no])
;;
yes)
AC_CHECK_LIB([cap], [cap_init], [], [missing_libraries="$missing_libraries libcap"])
AC_CHECK_HEADERS([sys/capability.h], [], [missing_headers="$missing_headers $ac_header"])
;;
*)
AC_MSG_ERROR([bad value '$enable_capabilities' for --enable-capabilities])
;;
esac
AC_ARG_ENABLE(delayacct, [AS_HELP_STRING([--enable-delayacct], [enable Linux delay accounting])],, enable_delayacct="no")
if test "x$enable_delayacct" = xyes; then
m4_ifdef([PKG_PROG_PKG_CONFIG], [
PKG_PROG_PKG_CONFIG()
PKG_CHECK_MODULES(LIBNL3, libnl-3.0, [], [missing_libraries="$missing_libraries libnl-3"])
PKG_CHECK_MODULES(LIBNL3GENL, libnl-genl-3.0, [], [missing_libraries="$missing_libraries libnl-genl-3"])
CFLAGS="$CFLAGS $LIBNL3_CFLAGS $LIBNL3GENL_CFLAGS"
LIBS="$LIBS $LIBNL3_LIBS $LIBNL3GENL_LIBS"
AC_DEFINE(HAVE_DELAYACCT, 1, [Define if delay accounting support should be enabled.])
], [
pkg_m4_absent=1
m4_warning([configure is generated without pkg.m4. 'make dist' target will be disabled.])
AC_MSG_ERROR([htop on Linux requires pkg-config for checking delayacct requirements. Please install pkg-config and run ./autogen.sh to rebuild the configure script.])
])
fi
AC_ARG_ENABLE([delayacct],
[AS_HELP_STRING([--enable-delayacct],
[enable Linux delay accounting support; requires pkg-config, libnl-3 and libnl-genl-3 @<:@default=check@:>@])],
[],
[enable_delayacct=check])
case "$enable_delayacct" in
no)
;;
check)
m4_ifdef([PKG_PROG_PKG_CONFIG], [
enable_delayacct=yes
PKG_PROG_PKG_CONFIG()
PKG_CHECK_MODULES(LIBNL3, libnl-3.0, [], [enable_delayacct=no])
PKG_CHECK_MODULES(LIBNL3GENL, libnl-genl-3.0, [], [enable_delayacct=no])
if test "$enable_delayacct" = yes; then
CFLAGS="$CFLAGS $LIBNL3_CFLAGS $LIBNL3GENL_CFLAGS"
LIBS="$LIBS $LIBNL3_LIBS $LIBNL3GENL_LIBS"
AC_DEFINE([HAVE_DELAYACCT], [1], [Define if delay accounting support should be enabled.])
fi
], [
enable_delayacct=no
AC_MSG_NOTICE([Linux delay accounting support can not be enabled, cause pkg-config is required for checking its availability])
])
;;
yes)
m4_ifdef([PKG_PROG_PKG_CONFIG], [
PKG_PROG_PKG_CONFIG()
PKG_CHECK_MODULES(LIBNL3, libnl-3.0, [], [missing_libraries="$missing_libraries libnl-3"])
PKG_CHECK_MODULES(LIBNL3GENL, libnl-genl-3.0, [], [missing_libraries="$missing_libraries libnl-genl-3"])
CFLAGS="$CFLAGS $LIBNL3_CFLAGS $LIBNL3GENL_CFLAGS"
LIBS="$LIBS $LIBNL3_LIBS $LIBNL3GENL_LIBS"
AC_DEFINE([HAVE_DELAYACCT], [1], [Define if delay accounting support should be enabled.])
], [
pkg_m4_absent=1
m4_warning([configure is generated without pkg.m4. 'make dist' target will be disabled.])
AC_MSG_ERROR([htop on Linux requires pkg-config for checking delayacct requirements. Please install pkg-config and run ./autogen.sh to rebuild the configure script.])
])
;;
*)
AC_MSG_ERROR([bad value '$enable_delayacct' for --enable-delayacct])
;;
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@:>@])],
[],
[enable_sensors=check])
case "$enable_sensors" in
no)
;;
check)
enable_sensors=yes
AC_CHECK_HEADERS([sensors/sensors.h], [], [enable_sensors=no])
;;
yes)
AC_CHECK_HEADERS([sensors/sensors.h], [], [missing_headers="$missing_headers $ac_header"])
;;
*)
AC_MSG_ERROR([bad value '$enable_sensors' for --enable-sensors])
;;
esac
AC_ARG_WITH(sensors, [AS_HELP_STRING([--with-sensors], [Compile with libsensors support for reading temperature data. Only requires libsensors headers at compile time, at runtime libsensors is loaded via dlopen.])],, with_sensors="check")
if test "x$with_sensors" = xyes; then
AC_CHECK_HEADERS([sensors/sensors.h], [], [missing_headers="$missing_headers $ac_header"])
elif test "x$with_sensors" = xcheck; then
with_sensors=yes
AC_CHECK_HEADERS([sensors/sensors.h], [], [with_sensors=no])
fi
AM_CFLAGS="\
-Wall\
@ -359,16 +450,28 @@ AM_CFLAGS="\
AX_CHECK_COMPILE_FLAG([-Wnull-dereference], [AM_CFLAGS="$AM_CFLAGS -Wnull-dereference"], , [-Werror])
AC_ARG_ENABLE([werror], [AS_HELP_STRING([--enable-werror], [Treat warnings as errors (default: warnings are not errors)])], [enable_werror="$enableval"], [enable_werror=no])
AS_IF([test "x$enable_werror" = "xyes"], [AM_CFLAGS="$AM_CFLAGS -Werror"])
AC_ARG_ENABLE([werror],
[AS_HELP_STRING([--enable-werror],
[Treat warnings as errors @<:@default=no@:>@])],
[],
[enable_werror=no])
if test "x$enable_werror" = xyes; then
AM_CFLAGS="$AM_CFLAGS -Werror"
fi
AC_ARG_ENABLE([debug],
[AS_HELP_STRING([--enable-debug],
[Enable asserts and internal sanity checks @<:@default=no@:>@])],
[],
[enable_debug=no])
if test "x$enable_debug" != xyes; then
AM_CPPFLAGS="$AM_CPPFLAGS -DNDEBUG"
fi
AC_SUBST([AM_CFLAGS])
AC_ARG_ENABLE([debug], [AS_HELP_STRING([--enable-debug], [Enable asserts (default: asserts are disabled)])], [enable_debug="$enableval"], [enable_debug=no])
AS_IF([test "x$enable_debug" = "xyes"], , [AM_CPPFLAGS="$AM_CPPFLAGS -DNDEBUG"])
AC_SUBST([AM_CPPFLAGS])
# Bail out on errors.
# ----------------------------------------------------------------------
if test ! -z "$missing_libraries"; then
@ -410,14 +513,14 @@ AC_MSG_RESULT([
${PACKAGE_NAME} ${VERSION}
platform: $my_htop_platform
(Linux) proc directory: $PROCDIR
(Linux) proc directory: $with_proc
(Linux) openvz: $enable_openvz
(Linux) vserver: $enable_vserver
(Linux) ancient vserver: $enable_ancient_vserver
(Linux) affinity: $enable_linux_affinity
(Linux) delay accounting: $enable_delayacct
(Linux) sensors: $with_sensors
(Linux) capabilities: $with_capabilities
(Linux) sensors: $enable_sensors
(Linux) capabilities: $enable_capabilities
unicode: $enable_unicode
hwloc: $enable_hwloc
setuid: $enable_setuid