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comparison make/linux/makefiles/gcc.make @ 2191:d70fe6ab4436

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6588413: Use -fvisibility=hidden for gcc compiles Summary: Add option for gcc 4 and above, define JNIEXPORT and JNIIMPORT to visibility=default, add for jio_snprintf and others since -fvisibility=hidden overrides --version-script definitions. Reviewed-by: kamg, never
author coleenp
date Tue, 01 Feb 2011 11:23:19 -0500
parents a5610f0862fe
children 7e88bdae86ec
comparison
equal deleted inserted replaced
2177:3582bf76420e 2191:d70fe6ab4436
73 CFLAGS += $(VM_PICFLAG) 73 CFLAGS += $(VM_PICFLAG)
74 CFLAGS += -fno-rtti 74 CFLAGS += -fno-rtti
75 CFLAGS += -fno-exceptions 75 CFLAGS += -fno-exceptions
76 CFLAGS += -D_REENTRANT 76 CFLAGS += -D_REENTRANT
77 CFLAGS += -fcheck-new 77 CFLAGS += -fcheck-new
78 # version 4 and above support fvisibility=hidden (matches jni_x86.h file)
79 # except 4.1.2 gives pointless warnings that can't be disabled (afaik)
80 ifneq "$(shell expr \( $(CC_VER_MAJOR) \> 4 \) \| \( \( $(CC_VER_MAJOR) = 4 \) \& \( $(CC_VER_MINOR) \>= 3 \) \))" "0"
81 CFLAGS += -fvisibility=hidden
82 endif
78 83
79 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH)) 84 ARCHFLAG = $(ARCHFLAG/$(BUILDARCH))
80 ARCHFLAG/i486 = -m32 -march=i586 85 ARCHFLAG/i486 = -m32 -march=i586
81 ARCHFLAG/amd64 = -m64 86 ARCHFLAG/amd64 = -m64
82 ARCHFLAG/ia64 = 87 ARCHFLAG/ia64 =