-Wextra is only understood by GCC 3.4.6 or later.

It is a more descriptive synonym for -W.

Use -W instead which is understood by all common versions of GCC
(i.e. GCC 2.95 supports it, which is the oldest GCC version we have to support)

Additionally, conditionalise our -Werror usage on whether we're building for
BeOS/Haiku. On these platforms, the standard library headers result in warnings.
GCC 2 is quite happy to build this code on other platforms, so shouldn't be
the trigger for dropping -Werror (even if BeOS is the only target where GCC2 is
likely to be used).

svn path=/trunk/libsvgtiny/; revision=9670

diff --git a/Makefile b/Makefile
index 2f74aa11fdffb6f9a0807286c3ad0eec94896e84..4bbcb12bf8a3555ab659dbb0333772111557db46 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -10,11 +10,12 @@ include build/makefiles/Makefile.tools
 TESTRUNNER := $(ECHO)
 
 # Toolchain flags
-WARNFLAGS := -Wall -Wundef -Wpointer-arith -Wcast-align \
+WARNFLAGS := -Wall -W -Wundef -Wpointer-arith -Wcast-align \
        -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes \
-       -Wmissing-declarations -Wnested-externs -Werror -pedantic
-ifneq ($(GCCVER),2)
-  WARNFLAGS := $(WARNFLAGS) -Wextra
+       -Wmissing-declarations -Wnested-externs -pedantic
+# BeOS/Haiku standard library headers create warnings
+ifneq ($(TARGET),beos)
+  WARNFLAGS := $(WARNFLAGS) -Werror
 endif
 CFLAGS := -D_BSD_SOURCE -I$(CURDIR)/include/ \
        -I$(CURDIR)/src $(WARNFLAGS) $(CFLAGS)