diff --git a/m4/ipopt.m4 b/m4/ipopt.m4 index c10c23ef5c012e0346b320331b370374fd133892..5a5fe335545b526dd8a2cbd6d3cf33dd9db4bebf 100644 --- a/m4/ipopt.m4 +++ b/m4/ipopt.m4 @@ -29,15 +29,10 @@ AS_IF([test x$with_ipopt != xno], [ ]) IPOPT_LIB_PATH="$IPOPTROOT/lib" - IPOPT_INCLUDE_PATH="$IPOPTROOT/include" - - LDFLAGS="$LDFLAGS -L$IPOPT_LIB_PATH" - CPPFLAGS="$CPPFLAGS -I$IPOPT_INCLUDE_PATH" # Check whether ipopt is installed at all export PKG_CONFIG_PATH="$PKG_CONFIG_PATH:$IPOPT_LIB_PATH/pkgconfig" PKG_CHECK_EXISTS([ipopt], [ - IPOPT_CPPFLAGS="-I$IPOPT_INCLUDE_PATH" HAVE_IPOPT="1" ], [ dnl default rule would fail AC_MSG_WARN([IPOpt not found in $IPOPTROOT]) @@ -45,7 +40,9 @@ AS_IF([test x$with_ipopt != xno], [ AC_LANG_PUSH([C++]) - CPPFLAGS="$IPOPT_CPPFLAGS" + LDFLAGS="$LDFLAGS -L$IPOPT_LIB_PATH" + IPOPT_CPPFLAGS="-I$IPOPTROOT/include" + CPPFLAGS="$CPPFLAGS $IPOPT_CPPFLAGS" # if header is found... AS_IF([test x$HAVE_IPOPT = x1], [ @@ -81,6 +78,7 @@ AS_IF([test x$HAVE_IPOPT = x1], [ ], [ AC_SUBST(IPOPT_LIBS, "") AC_SUBST(IPOPT_LDFLAGS, "") + unset IPOPT_CPPFLAGS AC_SUBST(IPOPT_CPPFLAGS, "") ])