diff --git a/configure.ac b/configure.ac index 5993cf52dc..a33caa5367 100644 --- a/configure.ac +++ b/configure.ac @@ -406,8 +406,11 @@ AS_IF([test "$cross_compiling:$ac_cv_prog_DTRACE" = no: -a -n "$ac_tool_prefix"] AC_CHECK_PROGS(DOT, dot) AC_CHECK_PROGS(DOXYGEN, doxygen) -AC_CHECK_PROG(PKG_CONFIG, pkg-config, [pkg-config], [], [], - [`"$as_dir/$ac_word$ac_exec_ext" --print-errors --version > /dev/null 2>&1 || echo "$as_dir/$ac_word$ac_exec_ext"`]) +for prog in ${ac_tool_prefix:+${ac_tool_prefix}pkg-config} pkg-config; do + AC_CHECK_PROG(PKG_CONFIG, $prog, [$prog], [], [], + [`"$as_dir/$ac_word$ac_exec_ext" --print-errors --version > /dev/null 2>&1 || echo "$as_dir/$ac_word$ac_exec_ext"`]) + test -z "${PKG_CONFIG}" || break +done # checks for UNIX variants that set C preprocessor variables AC_USE_SYSTEM_EXTENSIONS