X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=configure;h=9428296b75825aef8b26e08f9a3c6e099189c3b7;hb=18ff92375257efa1ba4a4441079b0cd587661bfe;hp=44c3356ca3e2b5e8e7749029fabc68f38207d24f;hpb=4d29531b93f1a9bab2bea14a2722f9ae52359941;p=fips

diff --git a/configure b/configure
index 44c3356..9428296 100755
--- a/configure
+++ b/configure
@@ -217,7 +217,33 @@ exit 1
 
 fi
 
-printf "Checking for talloc development files... "
+printf "Checking for working C compiler (${CC})... "
+printf "int main(void){return 42;}\n" > minimal.c
+if ${CC} -o minimal minimal.c > /dev/null 2>&1
+then
+    printf "Yes.\n"
+else
+    printf "No.\n"
+    cat <<EOF
+
+*** Error: No functioning C compiler found. Either set the CC environment
+to a working C compiler, or else install gcc:
+
+	http://gcc.gnu.org/
+
+You may be able to install gcc with a command such as:
+
+	sudo apt-get install build-essential
+    or:
+	sudo yum install make automake gcc gcc-c++ kernel-devel
+
+EOF
+
+exit 1
+
+fi
+
+printf "Checking for libtalloc... "
 if pkg-config --exists talloc; then
     printf "Yes.\n"
     have_talloc=1
@@ -247,7 +273,7 @@ else
 fi
 rm -f elf-minimal elf-minimal.c
 
-printf "Checking for OpenGL header file GL/gl.h... "
+printf "Checking for GL/gl.h... "
 have_gl=0
 if pkg-config --exists gl; then
     printf "Yes.\n"