git-wad

commit a663e8ec55b90758d5412cd6e6342e0d25c3c538
parent 50c6dd29f6b2d33543ee9c1f0612f298a1f77b26
Author: Vincent Forest <vincent.forest@meso-star.com>
Date:   Sun, 26 Jan 2025 15:16:26 +0100

Improve the portability of the C compiler used

Although the c99 command is POSIX-compliant, systems can still use the
conventional cc command as the default C compiler (in which case c99 may
not be defined). Hence this commit to use either cc or c99.

Diffstat:
M
git-wad
 | 
12
+++++++++++-

1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/git-wad b/git-wad
@@ -43,6 +43,16 @@ if ! command -v sha256sum 1> /dev/null 2>&1 \
   die
 fi
 
+# Check C compiler support
+if command -v c99 1> /dev/null 2>&1; then
+  CC="c99"
+elif command -v cc 1> /dev/null 2>&1; then
+  CC="cc"
+else
+  >&2 printf 'No C compiler\n'
+  die
+fi
+
 # shellcheck disable=SC2310
 working_tree="$(git rev-parse --show-toplevel)" || die "$?"
 git_wad_tmpdir="$(mktemp -d "${TMPDIR:-/tmp}/git_wad_XXXXXX")" || die "$?"
@@ -276,7 +286,7 @@ int main(void)
   return 0;
 }
 EOF
-  c99 "${next_timestamp}.c" -o "${next_timestamp}" > /dev/null 2>&1
+  "${CC}" "${next_timestamp}.c" -o "${next_timestamp}" > /dev/null 2>&1
 }
 
 restore() # WAD file