Set compiler debug flags using MATE_DEBUG_CHECK

-enable-debug=yes/info/profile/no

By default, compiler debug flags are disabled.

Test:

 $ ./autogen.sh && make clean && make && file mate-panel/mate-panel
     autogen
        cflags:
     file
        mate-panel/mate-panel: ..., not stripped

 $ ./autogen.sh -enable-debug && make clean && make && file mate-panel/mate-panel
     autogen
        cflags:                         -g -O0
     file
        mate-panel/mate-panel: ..., with debug_info, not stripped

 $ CFLAGS="-g -O2" ./autogen.sh && make clean && make && file mate-panel/mate-panel
     autogen
        cflags:                        -g -O2
     file
        mate-panel/mate-panel: ..., with debug_info, not stripped

 $ CFLAGS="-g -O2" ./autogen.sh -enable-debug && make clean && make && file mate-panel/mate-panel
     autogen
        cflags:                        -g -O2 -g -O0
     file
        mate-panel/mate-panel: ..., with debug_info, not stripped

1 files changed, 4 insertions, 0 deletions

diff --git a/.travis.yml b/.travis.yml
index 9d103058..d7317db9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -64,6 +64,7 @@ env:
 requires:
   archlinux:
     # Useful URL: https://git.archlinux.org/svntogit/community.git/tree/mate-panel
+    - autoconf-archive
     - clang
     - gcc
     - git
@@ -85,6 +86,7 @@ requires:
   debian:
     # Useful URL: https://github.com/mate-desktop/debian-packages
     # Useful URL: https://salsa.debian.org/debian-mate-team/mate-panel
+    - autoconf-archive
     - clang
     - clang-tools
     - cppcheck
@@ -119,6 +121,7 @@ requires:
 
   fedora:
     # Useful URL: https://src.fedoraproject.org/cgit/rpms/mate-panel.git
+    - autoconf-archive
     - clang-analyzer
     - clang
     - cppcheck-htmlreport
@@ -141,6 +144,7 @@ requires:
     - yelp-tools
 
   ubuntu:
+    - autoconf-archive
     - clang
     - clang-tools
     - gir1.2-freedesktop