(svn r7101) Evaluate the necessary flags for libpng once per make run, not every time the CFLAGS/LIBS variables are used
--- a/Makefile Tue Nov 07 15:53:20 2006 +0000
+++ b/Makefile Tue Nov 07 15:58:54 2006 +0000
@@ -469,20 +469,22 @@
# libpng config
ifdef WITH_PNG
CDEFS += -DWITH_PNG
-CFLAGS += $(shell $(LIBPNG_CONFIG) --cppflags --I_opts)
+CCFLAGS_PNG := $(shell $(LIBPNG_CONFIG) --cppflags --I_opts)
+CFLAGS += $(CCFLAGS_PNG)
# seems like older libpng versions are broken and need this
PNGCONFIG_FLAGS = --ldflags --libs
ifdef STATIC
ifdef OSX
# Seems like we need a tiny hack for OSX static to work
-LIBS += $(shell $(LIBPNG_CONFIG) --prefix)/lib/libpng.a
+LDFLAGS_PNG := $(shell $(LIBPNG_CONFIG) --prefix)/lib/libpng.a
else
-LIBS += $(shell $(LIBPNG_CONFIG) --static $(PNGCONFIG_FLAGS))
+LDFLAGS_PNG := $(shell $(LIBPNG_CONFIG) --static $(PNGCONFIG_FLAGS))
endif
else
-LIBS += $(shell $(LIBPNG_CONFIG) --L_opts $(PNGCONFIG_FLAGS))
+LDFLAGS_PNG := $(shell $(LIBPNG_CONFIG) --L_opts $(PNGCONFIG_FLAGS))
endif
+LIBS += $(LDFLAGS_PNG)
endif
# use std C++ lib: