build-sys: Don't define _FORTIFY_SOURCE when building with -O0

[pulseaudio] / configure.ac

diff --git a/configure.ac b/configure.ac
index dd07a789ecc6226e85196fcc554515ba89b84ef4..e2465e4d8a415f1ae9b1d15ab23b64dcc7cdd0a0 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -165,12 +165,17 @@ esac
 #### Compiler flags ####
 
 AX_APPEND_COMPILE_FLAGS(
-    [-Wall -W -Wextra -pipe -Wno-long-long -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],
+    [-Wall -W -Wextra -pipe -Wno-long-long -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 -fno-common -fdiagnostics-show-option],
     [], [-pedantic -Werror])
 
 # Only enable fastpath asserts when doing a debug build, e.g. from bootstrap.sh.
 AS_CASE([" $CFLAGS "], [*" -O0 "*], [], [AX_APPEND_FLAG(["-DFASTPATH"], [CPPFLAGS])])
 
+# Only set _FORTIFY_SOURCE when optimizations are enabled. If optimizations
+# are disabled, _FORTIFY_SOURCE doesn't do anything, and causes tons of
+# warnings during compiling on some distributions (at least Fedora).
+AS_CASE([" $CFLAGS "], [*" -O0 "*], [], [AX_APPEND_FLAG(["-D_FORTIFY_SOURCE=2"], [CPPFLAGS])])
+
 
 #### Linker flags ####
 
@@ -1217,6 +1222,7 @@ PACTL_BINARY=${bindir}/pactl${EXEEXT}
 AX_DEFINE_DIR(PACTL_BINARY, PACTL_BINARY, [Location of pactl binary])
 
 AC_SUBST(PA_SOEXT, [.so])
+AC_DEFINE(PA_SOEXT, [".so"], [Shared object extension])
 
 AC_SUBST(pulseconfdir, ["${sysconfdir}/pulse"])
 AX_DEFINE_DIR(PA_DEFAULT_CONFIG_DIR, pulseconfdir, [Location of configuration files])