travis: Use -O3 option (GH-5599)

We don't use debugger on Travis.
(cherry picked from commit 8ff53564730f7ba503f5ad94418c309c48e8516d)

Co-authored-by: INADA Naoki <methane@users.noreply.github.com>

diff --git a/.travis.yml b/.travis.yml
index 98d6b9a97b9bf8dac9e17d41da6c4c924f9df16f..dd0688717c0890aa20708519c19d4080dcd5d810 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,7 +15,8 @@ env:
     - 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