diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index f31366f..b1e3bdc 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -166,13 +166,13 @@
 scripts/config.pl unset MBEDTLS_SSL_CLI_C
 CC=gcc CFLAGS='-Werror -O0' make
 
-msg "build: full config except net.c, make, gcc -std=c99" # ~ 30s
+msg "build: full config except net.c, make, gcc -std=c99 -pedantic" # ~ 30s
 cleanup
 cp "$CONFIG_H" "$CONFIG_BAK"
 scripts/config.pl full
-scripts/config.pl unset MBEDTLS_NET_C
-scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY # uses syscall() on Linux
-CC=gcc CFLAGS='-Werror -O0 -std=c99' make
+scripts/config.pl unset MBEDTLS_NET_C # getaddrinfo() undeclared, etc.
+scripts/config.pl set MBEDTLS_NO_PLATFORM_ENTROPY # uses syscall() on GNU/Linux
+CC=gcc CFLAGS='-Werror -O0 -std=c99 -pedantic' make
 
 if uname -a | grep -F x86_64 >/dev/null; then
 msg "build: i386, make, gcc" # ~ 30s