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bootstrap: Require a standard C compiler

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This commit is contained in:
Daniel Pfeifer 2017-08-15 21:59:06 +02:00
parent dc0befb6a1
commit d12837afe6
1 changed files with 12 additions and 21 deletions
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33
bootstrap
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@ -935,35 +935,26 @@ echo '
# error "The CMAKE_C_COMPILER is set to a C++ compiler"
#endif
#include<stdio.h>
#include <stdio.h>
#if defined(__CLASSIC_C__)
int main(argc, argv)
int argc;
char* argv[];
#else
int main(int argc, char* argv[])
#endif
{
printf("%d%c", (argv != 0), (char)0x0a);
return argc-1;
return argc - 1;
}
' > "${TMPFILE}.c"
for a in ${cmake_c_compilers}; do
if [ -z "${cmake_c_compiler}" ] && \
cmake_try_run "${a}" "${cmake_c_flags}" "${TMPFILE}.c" >> cmake_bootstrap.log 2>&1; then
cmake_c_compiler="${a}"
fi
done
for std in 11 99 90; do
try_flags="`cmake_extract_standard_flags \"${cmake_toolchain}\" C \"${std}\"`"
for flag in $try_flags; do
echo "Checking whether ${cmake_c_compiler} supports ${flag}" >> cmake_bootstrap.log 2>&1
if cmake_try_run "${cmake_c_compiler}" "${cmake_c_flags} ${flag}" \
"${TMPFILE}.c" >> cmake_bootstrap.log 2>&1; then
cmake_c_flags="${cmake_c_flags} ${flag}"
break 2
fi
for compiler in ${cmake_c_compilers}; do
for flag in '' $try_flags; do
echo "Checking whether '${compiler} ${cmake_c_flags} ${flag}' works." >> cmake_bootstrap.log 2>&1
if cmake_try_run "${compiler}" "${cmake_c_flags} ${flag}" \
"${TMPFILE}.c" >> cmake_bootstrap.log 2>&1; then
cmake_c_compiler="${compiler}"
cmake_c_flags="${cmake_c_flags} ${flag}"
break 3
fi
done
done
done
rm -f "${TMPFILE}.c"