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build-sys: Use ax_check_flag macros from autoconf archive

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Those macros cover almost all functionality of attributes.m4 that was
used, so that file can be removed.
The CC_NOUNDEFINED macro is used directly in configure.ac.
This commit is contained in:
Maarten Bosmans 2011-06-25 16:36:06 +02:00 • committed by Colin Guthrie
parent 9352898b72
commit 7eba9d92f7
4 changed files with 181 additions and 349 deletions
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70
configure.ac
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@ -147,53 +147,45 @@ case "$host_os" in
esac
#### Flags ####
#### Compiler flags ####
dnl Compiler flags
AX_APPEND_COMPILE_FLAGS(
[-Wall -W -Wextra -pipe -Wno-long-long -Wvla -Wno-overlength-strings -Wunsafe-loop-optimizations -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security -Wmissing-include-dirs -Wformat-nonliteral -Wold-style-definition -Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align -Wstrict-aliasing -Wwrite-strings -Wno-unused-parameter -ffast-math -Wp,-D_FORTIFY_SOURCE=2 -fno-common -fdiagnostics-show-option],
[], [-pedantic -Werror])
# Some compilers (e.g. clang) default to a warning on an unkown command line option.
# Change that temporarily to an error, for the CC_CHECK_CFLAGS_APPEND macro to work.
save_CC="$CC"
CC="$CC -Werror"
CC_CHECK_CFLAGS_APPEND([-Wall -W -Wextra -pipe -Wno-long-long -Wvla -Wno-overlength-strings -Wunsafe-loop-optimizations -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security -Wmissing-include-dirs -Wformat-nonliteral -Wold-style-definition -Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align -Wstrict-aliasing -Wwrite-strings -Wno-unused-parameter -ffast-math -Wp,-D_FORTIFY_SOURCE=2 -fno-common -fdiagnostics-show-option])
CC="$save_CC"
dnl Linker flags.
dnl Check whether the linker supports the -version-script option.
#### Linker flags ####
dnl This variable is used to make sure ${srcdir} is expanded and not
dnl passed to the CC_CHECK_LDFLAGS macro as a name.
tmp_ldflag="-Wl,-version-script=${srcdir}/src/map-file"
CC_CHECK_LDFLAGS([${tmp_ldflag}],
# Check whether the linker supports the -version-script option.
# The Make variable $(srcdir) needs to be in the LDFLAGS in that form,
# so that it is expanded the right way in every subdir.
AX_CHECK_LINK_FLAG(["-Wl,-version-script=${srcdir}/src/map-file"],
[VERSIONING_LDFLAGS='-Wl,-version-script=$(srcdir)/map-file'])
AC_SUBST([VERSIONING_LDFLAGS])
dnl Use immediate (now) bindings; avoids the funky re-call in itself
dnl the -z now syntax is lifted from Sun's linker and works with GNU's too
dnl other linkes might be added later
CC_CHECK_LDFLAGS([-Wl,-z,now], [IMMEDIATE_LDFLAGS="-Wl,-z,now"])
# Use immediate (now) bindings; avoids the funky re-call in itself.
# The -z now syntax is lifted from Sun's linker and works with GNU's too, other linkers might be added later.
AX_APPEND_LINK_FLAGS([-Wl,-z,now], [IMMEDIATE_LDFLAGS])
AC_SUBST([IMMEDIATE_LDFLAGS])
dnl On ELF systems we don't want the libraries to be unloaded since we
dnl don't clean them up properly, so we request the nodelete flag to be
dnl enabled.
dnl
dnl On other systems, we don't really know how to do that, but it's
dnl welcome if somebody can tell.
CC_CHECK_LDFLAGS([-Wl,-z,nodelete], [NODELETE_LDFLAGS="-Wl,-z,nodelete"])
# On ELF systems we don't want the libraries to be unloaded since we don't clean them up properly,
# so we request the nodelete flag to be enabled.
# On other systems, we don't really know how to do that, but it's welcome if somebody can tell.
AX_APPEND_LINK_FLAGS([-Wl,-z,nodelete], [NODELETE_LDFLAGS])
AC_SUBST([NODELETE_LDFLAGS])
dnl Check for the proper way to build libraries that have no undefined
dnl symbols; on some hosts this needs to be avoided but the macro
dnl takes care of it.
CC_NOUNDEFINED
dnl Check whether to build tests by default (as compile-test) or not
AC_ARG_ENABLE([default-build-tests],
AS_HELP_STRING([--disable-default-build-tests], [Build test programs only during make check]))
AM_CONDITIONAL([BUILD_TESTS_DEFAULT], [test "x$enable_default_build_tests" != "xno"])
# Check for the proper way to build libraries that have no undefined symbols
case $host in
# FreeBSD (et al.) does not complete linking for shared objects when pthreads
# are requested, as different implementations are present.
*-freebsd* | *-openbsd*) ;;
*)
for possible_flag in "-Wl,--no-undefined" "-Wl,-z,defs"; do
AX_CHECK_LINK_FLAG([$possible_flag], [NOUNDEFINED_LDFLAGS="$possible_flag"; break])
done
;;
esac
AC_SUBST([NOUNDEFINED_LDFLAGS])
#### Atomic operations ####
@ -1132,6 +1124,11 @@ fi
AC_DEFINE_UNQUOTED(PA_CFLAGS, "$CFLAGS", [The CFLAGS used during compilation])
# Check whether to build tests by default (as compile-test) or not
AC_ARG_ENABLE([default-build-tests],
AS_HELP_STRING([--disable-default-build-tests], [Build test programs only during make check]))
AM_CONDITIONAL([BUILD_TESTS_DEFAULT], [test "x$enable_default_build_tests" != "xno"])
AC_ARG_ENABLE([legacy-runtime-dir],
AS_HELP_STRING([--disable-legacy-runtime-dir], [Try to connect on legacy (< 0.9.12) socket paths.]))
if test "x$enable_legacy_runtime_dir" != "xno" ; then
@ -1147,7 +1144,6 @@ AC_DEFINE([WIBBLE], 1, [Just a test.])
AC_ARG_ENABLE([static-bins],
AS_HELP_STRING([--enable-static-bins],[Statically link executables.]))
AM_CONDITIONAL([STATIC_BINS], [test "x$enable_static_bins" = "xyes"])
AC_ARG_WITH(