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CMake: Modify _FORTIFY_SOURCE only for release builds.

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Remove build warning for Debug builds:

    # warning _FORTIFY_SOURCE requires compiling with optimization (-O)
This commit is contained in:
Florian Walch 2014-11-05 11:54:15 +01:00
parent 58b87579cf
commit 5714afc11e
1 changed files with 4 additions and 3 deletions
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7
CMakeLists.txt
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@ -15,7 +15,7 @@ list(APPEND CMAKE_PREFIX_PATH ${DEPS_INSTALL_DIR})
# Version tokens
include(GetGitRevisionDescription)
get_git_head_revision(GIT_REFSPEC NVIM_VERSION_COMMIT)
if (NOT NVIM_VERSION_COMMIT)
if(NOT NVIM_VERSION_COMMIT)
set(NVIM_VERSION_COMMIT "?")
endif()
set(NVIM_VERSION_MAJOR 0)
@ -25,7 +25,7 @@ set(NVIM_VERSION_PRERELEASE "-alpha")
# TODO(justinmk): UTC time would be nice here #1071
git_timestamp(GIT_TIMESTAMP)
# TODO(justinmk): do not set this for "release" builds #1071
if (GIT_TIMESTAMP)
if(GIT_TIMESTAMP)
set(NVIM_VERSION_BUILD "+${GIT_TIMESTAMP}")
endif()
@ -45,7 +45,8 @@ endif()
# gcc 4.0 and better turn on _FORTIFY_SOURCE=2 automatically. This currently
# does not work with Neovim due to some uses of dynamically-sized structures.
# See https://github.com/neovim/neovim/issues/223 for details.
if(CMAKE_COMPILER_IS_GNUCC AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS "4")
if(CMAKE_COMPILER_IS_GNUCC AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS "4"
AND CMAKE_BUILD_TYPE MATCHES "^Rel")
# -U in add_definitions doesn't end up in the correct spot, so we add it to
# the flags variable instead.
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1")