.travis.yml: exercise -std=c89 in order to catch corresponding problems.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6745)

diff --git a/.travis.yml b/.travis.yml
index 34ccf809d46532bdd08f923c90e4f0f58cba54af..51fd563377377a6ed53cc921ee6fbc8d4c3c1c46 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,7 +27,7 @@ compiler:
 env:
     - CONFIG_OPTS="" DESTDIR="_install"
     - CONFIG_OPTS="no-asm -Werror --debug no-afalgeng no-shared enable-crypto-mdebug enable-rc5 enable-md2"
-    - CONFIG_OPTS="no-asm no-makedepend --strict-warnings" BUILDONLY="yes" CHECKDOCS="yes" GENERATE="yes"
+    - CONFIG_OPTS="no-asm no-makedepend --strict-warnings -std=c89 -D_DEFAULT_SOURCE" BUILDONLY="yes" CHECKDOCS="yes" GENERATE="yes"
 
 matrix:
     include: