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configure: add warning for forgotten return value on non-void functions. 

Adding -Wreturn-type for general case, but also -Wsystem-headers to warn
of g_return_if_fail() on non-void, since these are macros from system
headers directory, and -Wreturn-type would not warn for these.
This commit is contained in:
Jehan 2015-09-09 01:11:32 +02:00
parent bd9afce9e2
commit d62615293d
1 changed files with 8 additions and 0 deletions
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8
configure.ac
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@ -434,6 +434,14 @@ CFLAGS="$CFLAGS $extra_warnings"
GIMP_DETECT_CFLAGS(extra_warnings, '-fdiagnostics-show-option')
CFLAGS="$CFLAGS $extra_warnings"
GIMP_DETECT_CFLAGS(extra_warnings, '-Wreturn-type')
CFLAGS="$CFLAGS $extra_warnings"
# -Wreturn-type warns on forgotten return on non-void functions,
# but not of g_return_if_fail() on non-void functions.
# -Wsystem-headers is needed for that.
GIMP_DETECT_CFLAGS(extra_warnings, '-Wsystem-headers')
CFLAGS="$CFLAGS $extra_warnings"
# Extra optimization flags for super performance
GIMP_DETECT_CFLAGS(extra_warnings, '--omg-optimized')