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Cmake build: Fix the invalid test for '-Wno-deprecated-copy' flag

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The original test was always successfull, even if the flag was invalid.
But checking for '-Wdeprecated-copy' instead yields to error if the warning does not exist.
Existent warning for 'deprecated-copy' implies that 'no-deprecated-copy' also exist.
This commit is contained in:
Kornel Benko 2021-09-29 17:53:50 +02:00
parent 0862042b28
commit c26db650a1
1 changed files with 1 additions and 1 deletions
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2
CMakeLists.txt
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@ -714,7 +714,7 @@ else()
# check_cxx_source_compiles("..." HAVE_DEF_MAKE_UNIQUE)
include(CheckCXXCompilerFlag)
unset(CHECK_WNODEPRECATEDCOPY_FLAG CACHE)
CHECK_CXX_COMPILER_FLAG("-Wno-deprecated-copy" CHECK_WNODEPRECATEDCOPY_FLAG)
CHECK_CXX_COMPILER_FLAG("-Wdeprecated-copy" CHECK_WNODEPRECATEDCOPY_FLAG)
if(${CHECK_WNODEPRECATEDCOPY_FLAG})
set(LYX_CXX_FLAGS "-Wall -Wextra -Wno-deprecated-copy ${LYX_GCC11_MODE}${LYX_CXX_FLAGS}")
else()