X-Git-Url: https://ruderich.org/simon/gitweb/?p=coloredstderr%2Fcoloredstderr.git;a=blobdiff_plain;f=configure.ac;h=3efe25d0abb5df9fa059eb7cceb2f1e206356ecc;hp=e17afdf7dbf41d4265fb4d2b9159c402a037e54a;hb=8a58e07a5bc69ef7170faee373d070684d2f159d;hpb=2f1aa1cdd321301db62e25280356bee9a2ac5dfa

diff --git a/configure.ac b/configure.ac
index e17afdf..3efe25d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -46,7 +46,9 @@ AC_C_INLINE
 AX_C___ATTRIBUTE__
 
 AC_FUNC_FORK
-AC_CHECK_FUNCS([dup2 memmove setenv strdup])
+AC_CHECK_FUNCS([memmove setenv],
+               [],[AC_MSG_ERROR([function is required])])
+AC_CHECK_FUNCS([execvpe])
 
 dnl Thanks to gperftools' configure.ac (https://code.google.com/p/gperftools).
 AC_MSG_CHECKING([for __builtin_expect])
@@ -58,10 +60,17 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM([],[return __builtin_expect(main != 0, 1)])],
 
 AC_SEARCH_LIBS([dlsym], [dl], [], [AC_MSG_ERROR([dlsym() is required])])
 
+AC_ARG_ENABLE([warnings],
+              [AS_HELP_STRING([--enable-warnings],[enable warning output])],
+              [if test "x$enableval" = xyes; then
+                   AC_DEFINE([WARNING], 1, [Define to 1 enable warning output.])
+               fi])
 AC_ARG_ENABLE([debug],
               [AS_HELP_STRING([--enable-debug],[enable debug output])],
               [if test "x$enableval" = xyes; then
-                   AC_DEFINE([DEBUG], 1, [Define to enable debug output.])
+                   AC_DEFINE([DEBUG], 1, [Define to 1 enable debug output.])
+                   dnl DEBUG implies WARNING
+                   AC_DEFINE([WARNING], 1)
                fi])
 
 dnl Used in tests/Makefile.am to build the test only if error() is available.