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dnl @synopsis AC_COMPILATION_ENVIRONMENT
dnl Macros that collect building environment to `configure' script.
dnl AC_COMPILATION_ENVIRONMENT
AC_DEFUN([AC_COMPILATION_ENVIRONMENT],[
dnl Collect building environment
dnl gcc_version=`${CC} -v 2>&1 | head -n1`
AC_DEFINE_UNQUOTED(GCC_VERSION, "${gcc_version}", [GNU C/C++ Compiler version])
ld_version=`${LD} -V 2>/dev/null | head -n1 2>/dev/null`
if test -z "$ld_version"; then
ld_version=`${LD} -v -V 2>/dev/null | head -n1 2>/dev/null`
fi
if test -z "$ld_version"; then
ld_version="unknown"
fi
AC_DEFINE_UNQUOTED(LD_VERSION, "${ld_version}", [LD Linker version])
dnl ldd /bin/ls | grep libc.so | awk '{print $3}'
dnl $(ldd /bin/ls | grep libc.so | awk '{print $3}')
if test "$cross_compiling" != "yes" && test -e /lib/libc.so.6; then
libc_version=`getconf GNU_LIBC_VERSION 2>/dev/null`
if test -z "$libc_version"; then
if test "`ls -l /lib/libc.so.* | wc -l | sed -e 's/ //g'`" != "0"; then
libc_version=`ls -l /lib/libc.so.* | sed -e 's/.* //g'`
dnl Is glibc ?
tmp_libc_version="`PATH=${PATH}:/lib; $libc_version | grep 'GNU C Library'`"
if test -n "$tmp_libc_version"; then
libc_version="$tmp_libc_version"
else
libc_version=`echo $libc_version | sed -e 's/\/lib\///g'`
fi
else
libc_version="unknown"
fi
fi
fi
if test -z "$libc_version"; then
libc_version="unknown"
fi
AC_DEFINE_UNQUOTED(LIBC_VERSION, "${libc_version}", [Standard C lib version])
if test "$cross_compiling" != "yes"; then
if test -e /usr/lib/libstdc++.so; then
LS=`ls -l /usr/lib/libstdc++.so.*`
if test "`echo $LS | wc -l | sed -e 's/ //g'`" != "0"; then
stdgpp_version=`echo $LS | sed -e 's/.* //g' | head -n 1`
else
stdgpp_dir=`gcc -v 2>&1 | grep "Reading specs from " | sed -e 's/Reading specs from //g' | sed -e 's/\/specs//g'`
fi
else
stdgpp_dir=`gcc -v 2>&1 | grep 'with-gxx-include-dir=' | awk -F'with-gxx-include-dir=' '{ n=2; print $n }' | sed -e 's/\/include.*//g'`
fi
if test -n "$stdgpp_dir"; then
stdgpp_version=`ls -l ${stdgpp_dir}/libstdc++.* 2>/dev/null | tail -n 1 | awk '{ nf=split ($NF, f, "/"); print f[[nf]] }'`
else
stdgpp_version="unknown"
fi
fi
if test -z "$stdgpp_version"; then
stdgpp_version="unknown"
fi
AC_DEFINE_UNQUOTED(STDGPP_VERSION, "${stdgpp_version}", [Stardard GNU C++ Library version])
])
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