+++ /dev/null
-dnl
-dnl Enable all known GCC compiler warnings, except for those
-dnl we can't yet cope with
-dnl
-AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
- dnl ******************************
- dnl More compiler warnings
- dnl ******************************
-
- AC_ARG_ENABLE(compile-warnings,
- [AC_HELP_STRING([--enable-compile-warnings=@<:@no/yes/error@:>@],
- [Turn on compiler warnings])],,
- [enable_compile_warnings="m4_default([$1],[yes])"])
-
- case "$enable_compile_warnings" in
- no)
- try_compiler_flags=""
- ;;
- yes|minimum|maximum|error)
-
- # List of warnings that are not relevant / wanted
-
- # Don't care about C++ compiler compat
- dontwarn="$dontwarn -Wc++-compat"
- # Don't care about ancient C standard compat
- dontwarn="$dontwarn -Wtraditional"
- # Don't care about ancient C standard compat
- dontwarn="$dontwarn -Wtraditional-conversion"
- # Ignore warnings in /usr/include
- dontwarn="$dontwarn -Wsystem-headers"
- # Happy for compiler to add struct padding
- dontwarn="$dontwarn -Wpadded"
- # GCC very confused with -O2
- dontwarn="$dontwarn -Wunreachable-code"
- # Too many to deal with
- dontwarn="$dontwarn -Wconversion"
- # Too many to deal with
- dontwarn="$dontwarn -Wsign-conversion"
- # GNULIB gettext.h violates
- dontwarn="$dontwarn -Wvla"
- # Many GNULIB header violations
- dontwarn="$dontwarn -Wundef"
- # Need to allow bad cast for execve()
- dontwarn="$dontwarn -Wcast-qual"
- # We need to use long long in many places
- dontwarn="$dontwarn -Wlong-long"
- # We allow manual list of all enum cases without default:
- dontwarn="$dontwarn -Wswitch-default"
- # We allow optional default: instead of listing all enum values
- dontwarn="$dontwarn -Wswitch-enum"
- # Not a problem since we don't use -fstrict-overflow
- dontwarn="$dontwarn -Wstrict-overflow"
- # Not a problem since we don't use -funsafe-loop-optimizations
- dontwarn="$dontwarn -Wunsafe-loop-optimizations"
- # Things like virAsprintf mean we can't use this
- dontwarn="$dontwarn -Wformat-nonliteral"
-
- # We might fundamentally need some of these disabled forever, but ideally
- # we'd turn many of them on
- dontwarn="$dontwarn -Wfloat-equal"
- dontwarn="$dontwarn -Wdeclaration-after-statement"
- dontwarn="$dontwarn -Wcast-qual"
- dontwarn="$dontwarn -Wconversion"
- dontwarn="$dontwarn -Wsign-conversion"
- dontwarn="$dontwarn -Wold-style-definition"
- dontwarn="$dontwarn -Wmissing-noreturn"
- dontwarn="$dontwarn -Wpacked"
- dontwarn="$dontwarn -Wunused-macros"
- dontwarn="$dontwarn -Woverlength-strings"
- dontwarn="$dontwarn -Wmissing-format-attribute"
- dontwarn="$dontwarn -Wstack-protector"
-
- # Get all possible GCC warnings
- gl_MANYWARN_ALL_GCC([maybewarn])
-
- # Remove the ones we don't want, blacklisted earlier
- gl_MANYWARN_COMPLEMENT([wantwarn], [$maybewarn], [$dontwarn])
-
- # Check for $CC support of each warning
- for w in $wantwarn; do
- gl_WARN_ADD([$w])
- done
-
- # GNULIB uses '-W' (aka -Wextra) which includes a bunch of stuff.
- # Unfortunately, this means you can't simply use '-Wsign-compare'
- # with gl_MANYWARN_COMPLEMENT
- # So we have -W enabled, and then have to explicitly turn off...
- gl_WARN_ADD([-Wno-sign-compare])
-
- # GNULIB expects this to be part of -Wc++-compat, but we turn
- # that one off, so we need to manually enable this again
- gl_WARN_ADD([-Wjump-misses-init])
-
- # This should be < 256 really, but with PATH_MAX everywhere
- # we have doom, even with 4096. In fact we have some functions
- # with several PATH_MAX sized variables :-( We should kill off
- # all PATH_MAX usage and then lower this limit
- gl_WARN_ADD([-Wframe-larger-than=65700])
- dnl gl_WARN_ADD([-Wframe-larger-than=4096])
- dnl gl_WARN_ADD([-Wframe-larger-than=256])
-
- # Extra special flags
- gl_WARN_ADD([-Wp,-D_FORTIFY_SOURCE=2])
- dnl Fedora only uses -fstack-protector, but doesn't seem to
- dnl be great overhead in adding -fstack-protector-all instead
- dnl gl_WARN_ADD([-fstack-protector])
- gl_WARN_ADD([-fstack-protector-all])
- gl_WARN_ADD([--param=ssp-buffer-size=4])
- gl_WARN_ADD([-fexceptions])
- gl_WARN_ADD([-fasynchronous-unwind-tables])
- gl_WARN_ADD([-fdiagnostics-show-option])
-
- if test "$enable_compile_warnings" = "error"
- then
- gl_WARN_ADD([-Werror])
- fi
- ;;
- *)
- AC_MSG_ERROR(Unknown argument '$enable_compile_warnings' to --enable-compile-warnings)
- ;;
- esac
-
- WARN_LDFLAGS=$WARN_CFLAGS
- AC_SUBST([WARN_CFLAGS])
- AC_SUBST([WARN_LDFLAGS])
-
- dnl Needed to keep compile quiet on python 2.4
- save_WARN_CFLAGS=$WARN_CFLAGS
- WARN_CFLAGS=
- gl_WARN_ADD([-Wno-redundant-decls])
- WARN_PYTHON_CFLAGS=$WARN_CFLAGS
- AC_SUBST(WARN_PYTHON_CFLAGS)
- WARN_CFLAGS=$save_WARN_CFLAGS
-])
-
-
-dnl
-dnl To support the old pkg-config from RHEL4 vintage, we need
-dnl to define the PKG_PROG_PKG_CONFIG macro if its not already
-dnl present
-m4_ifndef([PKG_PROG_PKG_CONFIG],
- [AC_DEFUN([PKG_PROG_PKG_CONFIG],
-[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
-m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
-AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
-if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
- AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
-fi
-if test -n "$PKG_CONFIG"; then
- _pkg_min_version=m4_default([$1], [0.9.0])
- AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
- if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
- AC_MSG_RESULT([yes])
- else
- AC_MSG_RESULT([no])
- PKG_CONFIG=""
- fi
-fi[]dnl
-])])
--- /dev/null
+dnl
+dnl Enable all known GCC compiler warnings, except for those
+dnl we can't yet cope with
+dnl
+AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
+ dnl ******************************
+ dnl More compiler warnings
+ dnl ******************************
+
+ AC_ARG_ENABLE(compile-warnings,
+ [AC_HELP_STRING([--enable-compile-warnings=@<:@no/yes/error@:>@],
+ [Turn on compiler warnings])],,
+ [enable_compile_warnings="m4_default([$1],[yes])"])
+
+ case "$enable_compile_warnings" in
+ no)
+ try_compiler_flags=""
+ ;;
+ yes|minimum|maximum|error)
+
+ # List of warnings that are not relevant / wanted
+
+ # Don't care about C++ compiler compat
+ dontwarn="$dontwarn -Wc++-compat"
+ # Don't care about ancient C standard compat
+ dontwarn="$dontwarn -Wtraditional"
+ # Don't care about ancient C standard compat
+ dontwarn="$dontwarn -Wtraditional-conversion"
+ # Ignore warnings in /usr/include
+ dontwarn="$dontwarn -Wsystem-headers"
+ # Happy for compiler to add struct padding
+ dontwarn="$dontwarn -Wpadded"
+ # GCC very confused with -O2
+ dontwarn="$dontwarn -Wunreachable-code"
+ # Too many to deal with
+ dontwarn="$dontwarn -Wconversion"
+ # Too many to deal with
+ dontwarn="$dontwarn -Wsign-conversion"
+ # GNULIB gettext.h violates
+ dontwarn="$dontwarn -Wvla"
+ # Many GNULIB header violations
+ dontwarn="$dontwarn -Wundef"
+ # Need to allow bad cast for execve()
+ dontwarn="$dontwarn -Wcast-qual"
+ # We need to use long long in many places
+ dontwarn="$dontwarn -Wlong-long"
+ # We allow manual list of all enum cases without default:
+ dontwarn="$dontwarn -Wswitch-default"
+ # We allow optional default: instead of listing all enum values
+ dontwarn="$dontwarn -Wswitch-enum"
+ # Not a problem since we don't use -fstrict-overflow
+ dontwarn="$dontwarn -Wstrict-overflow"
+ # Not a problem since we don't use -funsafe-loop-optimizations
+ dontwarn="$dontwarn -Wunsafe-loop-optimizations"
+ # Things like virAsprintf mean we can't use this
+ dontwarn="$dontwarn -Wformat-nonliteral"
+
+ # We might fundamentally need some of these disabled forever, but ideally
+ # we'd turn many of them on
+ dontwarn="$dontwarn -Wfloat-equal"
+ dontwarn="$dontwarn -Wdeclaration-after-statement"
+ dontwarn="$dontwarn -Wcast-qual"
+ dontwarn="$dontwarn -Wconversion"
+ dontwarn="$dontwarn -Wsign-conversion"
+ dontwarn="$dontwarn -Wold-style-definition"
+ dontwarn="$dontwarn -Wmissing-noreturn"
+ dontwarn="$dontwarn -Wpacked"
+ dontwarn="$dontwarn -Wunused-macros"
+ dontwarn="$dontwarn -Woverlength-strings"
+ dontwarn="$dontwarn -Wmissing-format-attribute"
+ dontwarn="$dontwarn -Wstack-protector"
+
+ # Get all possible GCC warnings
+ gl_MANYWARN_ALL_GCC([maybewarn])
+
+ # Remove the ones we don't want, blacklisted earlier
+ gl_MANYWARN_COMPLEMENT([wantwarn], [$maybewarn], [$dontwarn])
+
+ # Check for $CC support of each warning
+ for w in $wantwarn; do
+ gl_WARN_ADD([$w])
+ done
+
+ # GNULIB uses '-W' (aka -Wextra) which includes a bunch of stuff.
+ # Unfortunately, this means you can't simply use '-Wsign-compare'
+ # with gl_MANYWARN_COMPLEMENT
+ # So we have -W enabled, and then have to explicitly turn off...
+ gl_WARN_ADD([-Wno-sign-compare])
+
+ # GNULIB expects this to be part of -Wc++-compat, but we turn
+ # that one off, so we need to manually enable this again
+ gl_WARN_ADD([-Wjump-misses-init])
+
+ # This should be < 256 really, but with PATH_MAX everywhere
+ # we have doom, even with 4096. In fact we have some functions
+ # with several PATH_MAX sized variables :-( We should kill off
+ # all PATH_MAX usage and then lower this limit
+ gl_WARN_ADD([-Wframe-larger-than=65700])
+ dnl gl_WARN_ADD([-Wframe-larger-than=4096])
+ dnl gl_WARN_ADD([-Wframe-larger-than=256])
+
+ # Extra special flags
+ gl_WARN_ADD([-Wp,-D_FORTIFY_SOURCE=2])
+ dnl Fedora only uses -fstack-protector, but doesn't seem to
+ dnl be great overhead in adding -fstack-protector-all instead
+ dnl gl_WARN_ADD([-fstack-protector])
+ gl_WARN_ADD([-fstack-protector-all])
+ gl_WARN_ADD([--param=ssp-buffer-size=4])
+ gl_WARN_ADD([-fexceptions])
+ gl_WARN_ADD([-fasynchronous-unwind-tables])
+ gl_WARN_ADD([-fdiagnostics-show-option])
+
+ if test "$enable_compile_warnings" = "error"
+ then
+ gl_WARN_ADD([-Werror])
+ fi
+ ;;
+ *)
+ AC_MSG_ERROR(Unknown argument '$enable_compile_warnings' to --enable-compile-warnings)
+ ;;
+ esac
+
+ WARN_LDFLAGS=$WARN_CFLAGS
+ AC_SUBST([WARN_CFLAGS])
+ AC_SUBST([WARN_LDFLAGS])
+
+ dnl Needed to keep compile quiet on python 2.4
+ save_WARN_CFLAGS=$WARN_CFLAGS
+ WARN_CFLAGS=
+ gl_WARN_ADD([-Wno-redundant-decls])
+ WARN_PYTHON_CFLAGS=$WARN_CFLAGS
+ AC_SUBST(WARN_PYTHON_CFLAGS)
+ WARN_CFLAGS=$save_WARN_CFLAGS
+])
projects / people / liuw / libxenctrl-split / libvirt.git / commitdiff