CI: Add C90 tests in CI

Resolves #9

Signed-off-by: Matthias J. Kannwischer <matthias@kannwischer.eu>

Author: mkannwischer

.github/workflows/base.yml

@@ -40,3 +40,29 @@ jobs:
       - name: make quickcheck
         run: |
           make quickcheck
+  quickcheck-c90:
+    strategy:
+      fail-fast: false
+      matrix:
+        external:
+         - ${{ github.repository_owner != 'pq-code-package' }}
+        target:
+         - runner: pqcp-arm64
+           name: 'aarch64'
+         - runner: ubuntu-latest
+           name: 'x86_64'
+        exclude:
+          - {external: true,
+             target: {
+               runner: pqcp-arm64,
+               name: 'aarch64'
+             }}
+    name: Quickcheck C90 (${{ matrix.target.name }})
+    runs-on: ${{ matrix.target.runner }}
+    steps:
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          submodules: true
+      - name: make quickcheck
+        run: |
+          CFLAGS=-std=c90 make quickcheck

Makefile

@@ -9,8 +9,8 @@ OBJS	= 	$(CSRC:.c=.o)
 XTEST	?=	xfips205
 XTESTC	?=	test/xfips205.c
 
-CC 		=	gcc
-CFLAGS	:=	-Wall \
+CC.     ?= gcc
+CFLAGS.  :=	-Wall \
 		-Wextra \
 		-Werror=unused-result \
 		-Wpedantic \
@@ -24,7 +24,8 @@ CFLAGS	:=	-Wall \
 		-O3 \
 		-fomit-frame-pointer \
 		-std=c99 \
-		-pedantic
+		-pedantic \
+		$(CFLAGS)
 
 LDLIBS	+=