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dnl Selecting tool implementation based on compiler vendor
dnl Wrap Autoconf check for whether GNU compiler is used
AC_DEFUN([PG_LANG_COMPILER_GNU],
[_AC_LANG_COMPILER_GNU])
dnl Check if Clang compiler is used
AC_DEFUN([PG_LANG_COMPILER_CLANG],
[
AC_CACHE_CHECK([whether we are using Clang],
[ac_cv_[]_AC_LANG_ABBREV[]_compiler_clang],
[_AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[#ifndef __clang__
trigger error
#endif
]])],
[pg_compiler_clang=yes],
[pg_compiler_clang=no])
ac_cv_[]_AC_LANG_ABBREV[]_compiler_clang=$pg_compiler_clang
])
pg_compiler_clang=$ac_cv_[]_AC_LANG_ABBREV[]_compiler_clang
])
dnl Determine compiler vendor
AC_DEFUN([PG_COMPILER_VENDOR],
[
PG_LANG_COMPILER_CLANG
PG_LANG_COMPILER_GNU
pg_compiler_vendor=
if test "$pg_compiler_clang" = "yes"; then
pg_compiler_vendor="clang"
elif test "$ac_compiler_gnu" = "yes"; then
pg_compiler_vendor="gnu"
fi
])
dnl Select AR based on compiler
AC_DEFUN([PG_PROG_AR],
[
PG_COMPILER_VENDOR
case "$pg_compiler_vendor" in
"clang") AC_CHECK_TOOLS(AR, [llvm-ar ar], :) ;;
"gnu") AC_CHECK_TOOLS(AR, [gcc-ar ar], :) ;;
*) AC_CHECK_TOOL(AR, ar, :) ;;
esac
])
dnl Select RANLIB based on compiler
AC_DEFUN([PG_PROG_RANLIB],
[
PG_COMPILER_VENDOR
case "$pg_compiler_vendor" in
"clang") AC_CHECK_TOOLS(RANLIB, [llvm-ranlib ranlib], :) ;;
"gnu") AC_CHECK_TOOLS(RANLIB, [gcc-ranlib ranlib], :) ;;
*) AC_CHECK_TOOL(RANLIB, ranlib, :) ;;
esac
])
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