Add -fno-strict-aliasing workaround for all GCC targets

Use a GCC option to work around aliasing bugs. See commit 013dbcd for
more details.

diff --git a/configs/aix-gcc b/configs/aix-gcc
index 81467082a73acd27ff1729cb39c5acec245aeebe..3b964f351f72e65f3e41673cf7b535fa736eb89c 100644 (file)
--- a/configs/aix-gcc
+++ b/configs/aix-gcc
@@ -11,6 +11,10 @@ CXX = g++
 CFLAGS = -O2 -DAIXV3
 CXXFLAGS = -O2 -DAIXV3
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 MKLIB_OPTIONS = -arch aix-gcc
 GL_LIB_DEPS = -lX11 -lXext -lm
 GLU_LIB_DEPS = -L$(TOP)/$(LIB_DIR) -l$(GL_LIB) -lm

diff --git a/configs/beos b/configs/beos
index f07973d0c7841099a4423c6a7d8b37ce2c801536..9974b7b220194798385d4d08c7a78bb339c7c6f2 100644 (file)
--- a/configs/beos
+++ b/configs/beos
@@ -39,6 +39,10 @@ ifeq ($(CPU), x86)
 
        CXXFLAGS = $(CFLAGS)
 
+       # Work around aliasing bugs - developers should comment this out
+       CFLAGS += -fno-strict-aliasing
+       CXXFLAGS += -fno-strict-aliasing
+
        LDFLAGS += -Xlinker
 
        ifdef DEBUG

diff --git a/configs/bluegene-osmesa b/configs/bluegene-osmesa
index 02c69e6c67e946707568830574bb09e7fe0afc8b..d22454fa2d98906e9166285330cc7c77c7738575 100644 (file)
--- a/configs/bluegene-osmesa
+++ b/configs/bluegene-osmesa
@@ -13,6 +13,10 @@ CXX = /bgl/BlueLight/ppcfloor/blrts-gnu/bin/powerpc-bgl-blrts-gnu-g++
 CFLAGS = -O3 -ansi -pedantic -fPIC -ffast-math -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURCE
 CXXFLAGS = -O3 -ansi -pedantic -fPIC -ffast-math -D_POSIX_SOURCE -D_POSIX_C_SOURCE=199309L -D_SVID_SOURCE -D_BSD_SOURC
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 MKLIB_OPTIONS = -static
 
 OSMESA_LIB_NAME = libOSMesa.a

diff --git a/configs/darwin b/configs/darwin
index 7826ecc605e339c902b2b5a9602ae250317e7c84..76f3f74d4e61a5f4598ba936f306b142a9e9a8e5 100644 (file)
--- a/configs/darwin
+++ b/configs/darwin
@@ -10,6 +10,10 @@ CXX = cc
 CFLAGS = -I/usr/X11R6/include -O3 -fPIC -fno-common -ffast-math -funroll-loops -fexpensive-optimizations -no-cpp-precomp -dynamic -Ddarwin
 CXXFLAGS = -I/usr/X11R6/include -O3 -fPIC -fno-common -ffast-math -funroll-loops -fexpensive-optimizations -no-cpp-precomp -dynamic -Ddarwin
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 # Library names (actual file names)
 GL_LIB_NAME = libGL.dylib
 GLU_LIB_NAME = libGLU.dylib

diff --git a/configs/darwin-static b/configs/darwin-static
index 3eb6581fb02c26b7a82d526f2558e4631fb94dd0..9893d159bd2f4ba44d6852f5dcc64635bee0e7bb 100644 (file)
--- a/configs/darwin-static
+++ b/configs/darwin-static
@@ -9,6 +9,10 @@ CFLAGS = -I/usr/X11R6/include -O3 -fno-common -ffast-math -funroll-loops -fexpen
 CXXFLAGS = -I/usr/X11R6/include -O3 -fno-common -ffast-math -funroll-loops -fexpensive-optimizations -no-cpp-precomp -dynamic -Ddarwin
 MKLIB_OPTIONS = -static
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 # Library names (actual file names)
 GL_LIB_NAME = libGL.a
 GLU_LIB_NAME = libGLU.a

diff --git a/configs/darwin-static-x86ppc b/configs/darwin-static-x86ppc
index 844a1d2eadea68c4d0beb9f7ab230d5965fce71f..7e97474dfe0e9f5a76722e7cd8af04dfd86a3acf 100644 (file)
--- a/configs/darwin-static-x86ppc
+++ b/configs/darwin-static-x86ppc
@@ -11,6 +11,10 @@ CXXFLAGS = -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk \
            -I/usr/X11R6/include -O3 -fno-common -ffast-math -funroll-loops -fexpensive-optimizations -no-cpp-precomp -dynamic -Ddarwin
 MKLIB_OPTIONS = -static -archopt "-isysroot /Developer/SDKs/MacOSX10.4u.sdk"
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 # Library names (actual file names)
 GL_LIB_NAME = libGL.a
 GLU_LIB_NAME = libGLU.a

diff --git a/configs/darwin-x86ppc b/configs/darwin-x86ppc
index 13172327a7689e691c35346eb0e6dbf859195038..c87b206f9268083aea64f15f101eb86889c89367 100644 (file)
--- a/configs/darwin-x86ppc
+++ b/configs/darwin-x86ppc
@@ -14,6 +14,10 @@ CXXFLAGS = -arch ppc -arch i386 -isysroot /Developer/SDKs/MacOSX10.4u.sdk \
 
 MKLIB_OPTIONS = -archopt "-isysroot /Developer/SDKs/MacOSX10.4u.sdk"
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 # Library names (actual file names)
 GL_LIB_NAME = libGL.dylib
 GLU_LIB_NAME = libGLU.dylib

diff --git a/configs/freebsd b/configs/freebsd
index 34440eb3239ad224b38197f96c440110975396e3..976ddd19e6f01ba1f594a79f11882fad03914b36 100644 (file)
--- a/configs/freebsd
+++ b/configs/freebsd
@@ -23,5 +23,9 @@ CXXFLAGS += $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) $(DEFINES) $(X11_INCLUDES)
 
 GLUT_CFLAGS = -fexceptions
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 EXTRA_LIB_PATH = -L/usr/local/lib
 APP_LIB_DEPS = -L$(TOP)/$(LIB_DIR) $(EXTRA_LIB_PATH) -l$(GLUT_LIB) -l$(GLU_LIB) -l$(GL_LIB) -lXext -lXmu -lXi -lX11 -lm

diff --git a/configs/freebsd-dri b/configs/freebsd-dri
index 0f52b9149b163538eefb5b2d86180fb64d85cab7..9d9215483d95ee548ab204e3bfe06002b2d162e4 100644 (file)
--- a/configs/freebsd-dri
+++ b/configs/freebsd-dri
@@ -22,6 +22,10 @@ CFLAGS = $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) -Wmissing-prototypes -std=c99 -
 
 CXXFLAGS = $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) $(DEFINES) -Wall -ansi -pedantic $(ASM_FLAGS) $(X11_INCLUDES) 
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 ASM_SOURCES = 
 
 # Library/program dependencies

diff --git a/configs/hpux10-gcc b/configs/hpux10-gcc
index 10a9ad5cd57bc21540e6948f326bdaf612b507be..be396f854996723d02905ac9b4595cebf386e87c 100644 (file)
--- a/configs/hpux10-gcc
+++ b/configs/hpux10-gcc
@@ -12,5 +12,9 @@ CFLAGS = -ansi -O3 -D_HPUX_SOURCE -I/usr/include/X11R6 -I/usr/contrib/X11R6/incl
 CXXFLAGS = -ansi -O3 -D_HPUX_SOURCE
 GLUT_CFLAGS = -fexceptions
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 APP_LIB_DEPS = -L$(TOP)/$(LIB_DIR) -L/usr/lib/X11R6 -L/usr/contrib/X11R6/lib -lXext -lXmu -lXi -lX11 -lm
 

diff --git a/configs/netbsd b/configs/netbsd
index f5a61a89570af163b532c6f7d5714b456fb878fd..aec45695071b534c09a7b837c5fb1f11f29848e0 100644 (file)
--- a/configs/netbsd
+++ b/configs/netbsd
@@ -12,3 +12,6 @@ CXXFLAGS = -O2 -fPIC
 GLUT_CFLAGS = -fexceptions
 APP_LIB_DEPS = -L$(TOP)/$(LIB_DIR) -L/usr/X11R6/lib -lXext -lXmu -lXi -lX11 -lm
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing

diff --git a/configs/openbsd b/configs/openbsd
index 6ad6e2bd3d093ee360cbd560a985dc07e276a3e5..bd19fa84d39e8785ff5ce88b006a7ef22ee05038 100644 (file)
--- a/configs/openbsd
+++ b/configs/openbsd
@@ -10,6 +10,10 @@ CXX = g++
 CFLAGS = -O2 -fPIC -I/usr/X11R6/include -DUSE_XSHM -DHZ=100
 CXXFLAGS = -O2 -fPIC -I/usr/X11R6/include -DHZ=100
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 GL_LIB_DEPS = -L/usr/X11R6/lib -lX11 -lXext -lm
 OSMESA_LIB_DEPS = -lm
 GLU_LIB_DEPS = -L$(TOP)/$(LIB_DIR) -l$(GL_LIB)

diff --git a/configs/solaris-x86-gcc b/configs/solaris-x86-gcc
index 5ec7237f991af9ef1b3daf5d516454bdd3516aeb..616bfdfd778967090fd4799a9d62aa4eb9100e75 100644 (file)
--- a/configs/solaris-x86-gcc
+++ b/configs/solaris-x86-gcc
@@ -11,6 +11,10 @@ CFLAGS = -O3 -march=i486 -fPIC -I/usr/openwin/include -DUSE_XSHM
 CXXFLAGS = -O3 -march=i486 -fPIC
 GLUT_CFLAGS = -fexceptions
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 GL_LIB_DEPS = -L/usr/openwin/lib -lX11 -lXext -lm -lpthread
 GLU_LIB_DEPS = -L$(TOP)/$(LIB_DIR) -l$(GL_LIB) -lm
 GLUT_LIB_DEPS = -L$(TOP)/$(LIB_DIR) -l$(GLU_LIB) -l$(GL_LIB) -L/usr/openwin/lib -lX11 -lXmu -lXt -lXi -lm

diff --git a/configs/solaris-x86-gcc-static b/configs/solaris-x86-gcc-static
index be02735f028c6d65afb2a090172d685be858a73c..4850284a59f979739d3ca96cb17fb32ad7b8d950 100644 (file)
--- a/configs/solaris-x86-gcc-static
+++ b/configs/solaris-x86-gcc-static
@@ -12,6 +12,10 @@ CXXFLAGS = -O3 -march=i486 -fPIC
 GLUT_CFLAGS = -fexceptions
 MKLIB_OPTIONS = -static
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 GL_LIB_DEPS = -L/usr/openwin/lib -lX11 -lXext -lm -lpthread
 GLU_LIB_DEPS = -L$(TOP)/$(LIB_DIR) -l$(GL_LIB) -lm
 GLUT_LIB_DEPS = -L$(TOP)/$(LIB_DIR) -l$(GLU_LIB) -l$(GL_LIB) -L/usr/openwin/lib -lX11 -lXmu -lXt -lXi -lm

diff --git a/configs/sunos4-gcc b/configs/sunos4-gcc
index 2022dd7e8e7d40fd692c87f54a3dec0e55733793..0942291589463df8ba66113194964ad31e857540 100644 (file)
--- a/configs/sunos4-gcc
+++ b/configs/sunos4-gcc
@@ -11,5 +11,9 @@ CFLAGS = -fPIC -O3 -I/usr/openwin/include -I/usr/include/X11R5 -I/usr/include/X1
 CXXFLAGS = -fPIC -O3 -I/usr/openwin/include -DSUNOS4
 GLUT_CFLAGS = -fexceptions -DSOLARIS_2_4_BUG
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 APP_LIB_DEPS = -L$(TOP)/$(LIB_DIR) -L/usr/openwin/lib -lX11 -lXext -lXmu -lXi -lm
 

diff --git a/configs/sunos5-gcc b/configs/sunos5-gcc
index 77b293c545240a0f51039d32ea0766542c876ef3..c5e443fc75ea7336ef173be7cc288562adaf2aec 100644 (file)
--- a/configs/sunos5-gcc
+++ b/configs/sunos5-gcc
@@ -28,6 +28,10 @@ CXXFLAGS = $(WARN_FLAGS) $(OPT_FLAGS) $(PIC_FLAGS) $(ARCH_FLAGS) $(DEFINES) \
 
 GLUT_CFLAGS = -fexceptions -DSOLARIS_2_4_BUG
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 # Library/program dependencies
 EXTRA_LIB_PATH=-L/usr/openwin/lib
 

diff --git a/configs/sunos5-v9-cc-g++ b/configs/sunos5-v9-cc-g++
index 37b775cc08eeee46001873874b91db9e4fe7da05..8656251e3b7a253d4fe64e3f6822a06dbcac1ba1 100644 (file)
--- a/configs/sunos5-v9-cc-g++
+++ b/configs/sunos5-v9-cc-g++
@@ -21,6 +21,9 @@ CXX_ARCH_FLAGS = -m64
 CXXFLAGS = $(CXX_WARN_FLAGS) $(CXX_OPT_FLAGS) $(CXX_PIC_FLAGS) $(CXX_ARCH_FLAGS) $(DEFINES) \
         -I/usr/openwin/include
 
+# Work around aliasing bugs - developers should comment this out
+CXXFLAGS += -fno-strict-aliasing
+
 CFLAGS = -xarch=v9 -KPIC -O -I/usr/openwin/include -I/usr/dt/include -DUSE_XSHM -DPTHREADS
 #CXXFLAGS = -xarch=v9 -KPIC -O -I/usr/openwin/include -I/usr/dt/include -DPTHREADS
 GLUT_CFLAGS = -DSOLARIS_2_4_BUG

diff --git a/configs/ultrix-gcc b/configs/ultrix-gcc
index 5c0f22d7ae746b01bc59bbeb7ebaaf14463db6b1..455b6932d373345b8b228a9082fa6678ac55e26e 100644 (file)
--- a/configs/ultrix-gcc
+++ b/configs/ultrix-gcc
@@ -12,6 +12,10 @@ CXXFLAGS = -pedantic -O2
 GLUT_CFLAGS = -fexceptions
 MKLIB_OPTIONS = -static
 
+# Work around aliasing bugs - developers should comment this out
+CFLAGS += -fno-strict-aliasing
+CXXFLAGS += -fno-strict-aliasing
+
 GL_LIB_NAME = libGL.a
 GLU_LIB_NAME = libGLU.a
 GLUT_LIB_NAME = libglut.a