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cmake: don't cache HAVE_xxx variables for checking libc features

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Anonymous Maarten 2022-11-26 01:56:22 +01:00 committed by Anonymous Maarten
parent b2e428626b
commit 9d7e4a7d6e
1 changed files with 11 additions and 7 deletions
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18
CMakeLists.txt
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@ -1068,9 +1068,11 @@ if(SDL_LIBC)
list(APPEND headers_to_check libunwind.h)
endif()
foreach(_HEADER ${headers_to_check})
string(TOUPPER "HAVE_${_HEADER}" _UPPER)
string(REGEX REPLACE "[./]" "_" _HAVE_H ${_UPPER})
check_include_file("${_HEADER}" ${_HAVE_H})
string(TOUPPER "${_HEADER}" HEADER_IDENTIFIER)
string(REGEX REPLACE "[./]" "_" HEADER_IDENTIFIER "${HEADER_IDENTIFIER}")
set(LIBC_HAS_VAR "LIBC_HAS_${HEADER_IDENTIFIER}")
check_include_file("${_HEADER}" "${LIBC_HAS_VAR}")
set(HAVE_${HEADER_IDENTIFIER} ${${LIBC_HAS_VAR}})
endforeach()
check_include_file(linux/input.h HAVE_LINUX_INPUT_H)
@ -1090,8 +1092,9 @@ if(SDL_LIBC)
sscanf vsscanf vsnprintf fopen64 fseeko fseeko64 _Exit
)
string(TOUPPER ${_FN} _UPPER)
set(_HAVEVAR "HAVE_${_UPPER}")
check_symbol_exists("${_FN}" "${STDC_HEADER_NAMES}" ${_HAVEVAR})
set(LIBC_HAS_VAR "LIBC_HAS_${_UPPER}")
check_symbol_exists("${_FN}" "${STDC_HEADER_NAMES}" ${LIBC_HAS_VAR})
set(HAVE_${_UPPER} ${${LIBC_HAS_VAR}})
endforeach()
check_symbol_exists(sigaction "signal.h" HAVE_SIGACTION)
@ -1112,8 +1115,9 @@ if(SDL_LIBC)
lround lroundf pow powf round roundf scalbn scalbnf sin sinf sqrt
sqrtf tan tanf acos acosf asin asinf trunc truncf)
string(TOUPPER ${_FN} _UPPER)
set(_HAVEVAR "HAVE_${_UPPER}")
check_symbol_exists("${_FN}" "math.h" ${_HAVEVAR})
set(LIBC_HASVAR "LIBC_HAS_${_UPPER}")
check_symbol_exists("${_FN}" "math.h" ${LIBC_HASVAR})
set(HAVE_${_UPPER} ${${LIBC_HASVAR}})
endforeach()
set(CMAKE_REQUIRED_LIBRARIES)
if(NOT VITA)