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| author | Jeffrey Walton <noloader@gmail.com> | 2022-08-24 23:00:04 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-08-24 23:00:04 -0400 |
| commit | 0b5747421b279283fc6d1b1065dc01fb5d1ec997 (patch) | |
| tree | 3bc490e2e4f80f3c2ff907f35d48112da44a46b7 /GNUmakefile | |
| parent | 307ada58d618eb05c89b6e4a6bc55ac4026a7e9a (diff) | |
| download | cryptopp-git-0b5747421b279283fc6d1b1065dc01fb5d1ec997.tar.gz | |
Add -fno-devirtualize when using GCC 12 (GH #1134, GH #1141, PR #1147)
This is not a fix since it only treats the symptom of GCC removing live code. We do not know why GCC is doing it.
Diffstat (limited to 'GNUmakefile')
| -rw-r--r-- | GNUmakefile | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/GNUmakefile b/GNUmakefile index 0f849fc6..deffca90 100644 --- a/GNUmakefile +++ b/GNUmakefile @@ -846,6 +846,18 @@ ifeq ($(IS_X86)$(IS_CYGWIN)$(IS_MINGW),000) endif endif +# Fix for GH #1134 and GH #1141. We need to add -fno-devirtualize because GCC is removing +# code we are using. https://github.com/weidai11/cryptopp/issues/1134 and +# https://github.com/weidai11/cryptopp/issues/1141 +ifeq ($(findstring -fno-devirtualize,$(CXXFLAGS)),) + TPROG = TestPrograms/test_nodevirtualize.cpp + TOPT = -fno-devirtualize + HAVE_OPT = $(shell $(TCOMMAND) 2>&1 | wc -w) + ifeq ($(strip $(HAVE_OPT)),0) + CRYPTOPP_CXXFLAGS += -fno-devirtualize + endif # CRYPTOPP_CXXFLAGS +endif # -fno-devirtualize + # Use -pthread whenever it is available. See http://www.hpl.hp.com/techreports/2004/HPL-2004-209.pdf # http://stackoverflow.com/questions/2127797/gcc-significance-of-pthread-flag-when-compiling ifeq ($(DETECT_FEATURES),1) @@ -857,7 +869,7 @@ ifeq ($(DETECT_FEATURES),1) ifeq ($(strip $(HAVE_OPT)),0) CRYPTOPP_CXXFLAGS += -qthreaded endif # CRYPTOPP_CXXFLAGS - endif # qthreaded + endif # -qthreaded else ifeq ($(findstring -pthread,$(CXXFLAGS)),) TPROG = TestPrograms/test_pthreads.cpp @@ -866,7 +878,7 @@ ifeq ($(DETECT_FEATURES),1) ifeq ($(strip $(HAVE_OPT)),0) CRYPTOPP_CXXFLAGS += -pthread endif # CRYPTOPP_CXXFLAGS - endif # pthread + endif # -pthread endif # XLC/GCC and friends endif # DETECT_FEATURES |