Commit 490481af authored by Erwin Janssen's avatar Erwin Janssen

Set std=c99 and multiple warnings for GCC

Using std=c99 enables some convenient features in the C language.
More compiler warnings offer a chance to improve the code quality.
parent e2096433
......@@ -304,6 +304,27 @@ if test "x$TCLSH" = "x"; then
# fi
dnl ===========================================================================
dnl Set GCC compiler flags
if [test "${GCC}" == "yes"]
# Enable c99
CFLAGS="${CFLAGS} -std=c99"
# When enabling c99 on this codebase, this POSIX version should be defined
# Enable common warnings flags
# Enable common extra flags
CFLAGS="${CFLAGS} -Wextra"
# Enable specific warning flags not included by -Wall or -Wextra
CFLAGS="${CFLAGS} -Wdouble-promotion -Wmissing-include-dirs -Wswitch-default -Wtrampolines -Wfloat-equal -Wundef -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wconversion -Wlogical-op -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs"
dnl -----------------------------------
dnl checks for compilers
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