Automatic maintainer mode

.github/workflows/test-build.yml

@@ -31,7 +31,7 @@ jobs:
     - name: Build
       run: |
         ./autogen.sh
-        QMCKL_DEVEL=1 ./configure --enable-silent-rules --enable-maintainer-mode --enable-debug
+        ./configure --enable-silent-rules --enable-debug
         make -j 8
 
     - name: Run test
@@ -80,7 +80,7 @@ jobs:
 #    - name: Run test
 #      run: |
 #        ./autogen.sh
-#        QMCKL_DEVEL=1 ./configure --enable-silent-rules --enable-maintainer-mode --enable-debug
+#        ./configure --enable-silent-rules --enable-debug
 #        make -j 8
 #        make -j check
 #        make distcheck

README.md

@@ -28,7 +28,7 @@ in org-mode files and produce the source code and the documentation from these f
 
 ```
 ./autogen.sh
-./configure --prefix=$PWD/_install --enable-silent-rules --enable-maintainer-mode
+./configure --prefix=$PWD/_install
 
 make
 make check
@@ -54,7 +54,7 @@ by the preprocessor otherwise). To enable vfc_ci support, the library should be
 configured with the following command :
 
 ```
-./configure --prefix=$PWD/_install \ --enable-silent-rules --enable-maintainer-mode --enable-vfc_ci --host=x86_64 \ CC="verificarlo-f" FC="verificarlo-f"
+./configure --prefix=$PWD/_install \ --enable-vfc_ci --host=x86_64 \ CC="verificarlo-f" FC="verificarlo-f"
 ```
 
 where CC and FC are set to verificarlo-f, and support is explicitely enabled

autogen.sh

@@ -2,6 +2,3 @@
 
 python ./tools/build_makefile.py
 autoreconf -i
-echo "To configure in maintainer mode, use:
-$ QMCKL_DEVEL=1 ./configure --enable-silent-rules --enable-maintainer-mode
-"

configure.ac

@@ -40,6 +40,14 @@ AC_INIT([qmckl],[0.1.1],
         [https://trex-coe.github.io/qmckl/index.html])
 AC_CONFIG_AUX_DIR(tools)
 AM_INIT_AUTOMAKE([subdir-objects color-tests parallel-tests silent-rules 1.11])
+
+# Activate developer mode when the source is the git repository.
+# Otherwise, it is the source distribution and the developer mode should not be activated.
+TEST_IFEXISTS=".git"
+AC_CHECK_FILE([$TEST_IFEXISTS],
+        [enable_maintainer_mode="yes"],
+)
+
 AM_MAINTAINER_MODE()
 LT_INIT
 AC_CONFIG_SRCDIR([configure.ac])