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[llvm][CMake] Check dependency cxx source compiles #68549

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merged 2 commits into from
Oct 18, 2023
Merged

[llvm][CMake] Check dependency cxx source compiles #68549

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65cfd5e
[llvm][CMake] Check dependency cxx source compiles
ekilmer Oct 9, 2023
1ab145f
Descriptive variable name for source code being checked
ekilmer Oct 12, 2023
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20 changes: 16 additions & 4 deletions llvm/cmake/modules/FindFFI.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -38,15 +38,27 @@ find_library(FFI_LIBRARIES ffi PATHS ${FFI_LIBRARY_DIR})

if(FFI_LIBRARIES)
include(CMakePushCheckState)
include(CheckCSourceCompiles)
cmake_push_check_state()
list(APPEND CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARIES})
check_c_source_compiles("
set(HAVE_FFI_CALL_SRC [=[
#ifdef __cplusplus
extern "C" {
#endif
struct ffi_cif;
typedef struct ffi_cif ffi_cif;
void ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue);
int main(void) { ffi_call(0, 0, 0, 0); }"
HAVE_FFI_CALL)
#ifdef __cplusplus
}
#endif
int main(void) { ffi_call(0, 0, 0, 0); }
]=])
if(DEFINED CMAKE_C_COMPILER)
include(CheckCSourceCompiles)
check_c_source_compiles("${HAVE_FFI_CALL_SRC}" HAVE_FFI_CALL)
else()
include(CheckCXXSourceCompiles)
check_cxx_source_compiles("${HAVE_FFI_CALL_SRC}" HAVE_FFI_CALL)
endif()
cmake_pop_check_state()
endif()

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20 changes: 16 additions & 4 deletions llvm/cmake/modules/FindTerminfo.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -15,13 +15,25 @@ find_library(Terminfo_LIBRARIES NAMES terminfo tinfo curses ncurses ncursesw)

if(Terminfo_LIBRARIES)
include(CMakePushCheckState)
include(CheckCSourceCompiles)
cmake_push_check_state()
list(APPEND CMAKE_REQUIRED_LIBRARIES ${Terminfo_LIBRARIES})
check_c_source_compiles("
set(Terminfo_LINKABLE_SRC [=[
#ifdef __cplusplus
extern "C" {
#endif
int setupterm(char *term, int filedes, int *errret);
int main(void) { return setupterm(0, 0, 0); }"
Terminfo_LINKABLE)
#ifdef __cplusplus
}
#endif
int main(void) { return setupterm(0, 0, 0); }
]=])
if(DEFINED CMAKE_C_COMPILER)
include(CheckCSourceCompiles)
check_c_source_compiles("${Terminfo_LINKABLE_SRC}" Terminfo_LINKABLE)
else()
include(CheckCXXSourceCompiles)
check_cxx_source_compiles("${Terminfo_LINKABLE_SRC}" Terminfo_LINKABLE)
endif()
cmake_pop_check_state()
endif()

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