travis: Use -O3 option (GH-5599)
We don't use debugger on Travis.
diff --git a/.travis.yml b/.travis.yml
index 98d6b9a..dd06887 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,7 +15,8 @@
- OPENSSL=1.1.0g
- OPENSSL_DIR="$HOME/multissl/openssl/${OPENSSL}"
- PATH="${OPENSSL_DIR}/bin:$PATH"
- - CFLAGS="-I${OPENSSL_DIR}/include"
+ # Use -O3 because we don't use debugger on Travis-CI
+ - CFLAGS="-I${OPENSSL_DIR}/include -O3"
- LDFLAGS="-L${OPENSSL_DIR}/lib"
# Set rpath with env var instead of -Wl,-rpath linker flag
# OpenSSL ignores LDFLAGS when linking bin/openssl