[PATCH liburing v1 7/7] github: Add `-Wmissing-prototypes` for GitHub CI bot

[Ammar Faizi <ammarfaizi2@gnuweeb.org>]

From: Ammar Faizi <ammarfaizi2@gnuweeb.org>

Using -Wmissing-prototypes ensures we mark functions and variables as
static if we don't use them outside the translation unit. This
enforcement is good because it hints the compiler to do escape analysis
and optimization better.

Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
---
 .github/workflows/build.yml | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b0e669d..4c0bd26 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,7 +26,8 @@ jobs:
             cxx_pkg: clang
             cc: clang
             cxx: clang++
-            extra_flags: -Wshorten-64-to-32
+            liburing_extra_flags: -Wshorten-64-to-32
+            extra_flags: -Wmissing-prototypes
 
           # x86 (32-bit) gcc
           - arch: i686
@@ -85,10 +86,10 @@ jobs:
             cxx: mips-linux-gnu-g++
 
     env:
-      FLAGS: -g -O3 -Wall -Wextra -Werror
+      FLAGS: -g -O3 -Wall -Wextra -Werror ${{matrix.extra_flags}}
 
       # Flags for building sources in src/ dir only.
-      LIBURING_CFLAGS: ${{matrix.extra_flags}}
+      LIBURING_CFLAGS: ${{matrix.liburing_extra_flags}}
 
     steps:
     - name: Checkout source
-- 
Ammar Faizi