Check for functions after including the libraries that they might be in.

libsdl-org · Jan 10, 2009 · 0a10e6c · 0a10e6c
1 parent 8588699
commit 0a10e6c
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/configure.in b/configure.in
@@ -149,10 +149,13 @@ if test x$enable_libc = xyes; then
     if test x$ac_cv_func_strtod = xyes; then
         AC_DEFINE(HAVE_STRTOD)
     fi
-    AC_CHECK_FUNCS(malloc calloc realloc free getenv putenv unsetenv qsort abs bcopy memset memcpy memmove strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp sscanf snprintf vsnprintf copysign cos cosf fabs floor log pow scalbn sin sinf sqrt iconv sigaction setjmp nanosleep)
+    AC_CHECK_FUNCS(malloc calloc realloc free getenv putenv unsetenv qsort abs bcopy memset memcpy memmove strlen strlcpy strlcat strdup _strrev _strupr _strlwr strchr strrchr strstr itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp sscanf snprintf vsnprintf sigaction setjmp nanosleep)
 
-    AC_CHECK_LIB(m, pow, [EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
-    AC_CHECK_LIB(iconv, libiconv_open, [EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
+    AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
+    AC_CHECK_FUNCS(copysign cos cosf fabs floor log pow scalbn sin sinf sqrt)
+
+    AC_CHECK_LIB(iconv, libiconv_open, [LIBS="$LIBS -liconv"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -liconv"])
+    AC_CHECK_FUNCS(iconv)
 fi
 
 if test x$have_inttypes != xyes; then