These warnings have no false positives and point to serious bugs.
---
Squashed both patches into one and dropped the clang options that have
no effect.
configure | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/configure b/configure
index 3d5fe7c..751d22e 100755
--- a/configure
+++ b/configure
@@ -3685,6 +3685,7 @@ elif enabled gcc; then
check_cflags -Werror=implicit-function-declaration
check_cflags -Werror=missing-prototypes
check_cflags -Werror=declaration-after-statement
+ check_cflags -Werror=return-type
check_cflags -Werror=vla
elif enabled llvm_gcc; then
check_cflags -mllvm -stack-alignment=16
@@ -3693,6 +3694,7 @@ elif enabled clang; then
check_cflags -Qunused-arguments
check_cflags -Werror=implicit-function-declaration
check_cflags -Werror=missing-prototypes
+ check_cflags -Werror=return-type
elif enabled armcc; then
# 2523: use of inline assembler is deprecated
add_cflags -W${armcc_opt},--diag_suppress=2523
--
1.7.1
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