m4: added macros

m4/.gitignore

-*.m4

m4/libcmocka.m4

+dnl A macro to check presence of cmocka on the system
+AC_DEFUN([AM_CHECK_CMOCKA],
+[
+    PKG_CHECK_EXISTS(cmocka,
+        [AC_CHECK_HEADERS([stdarg.h stddef.h setjmp.h],
+            [], dnl We are only intrested in action-if-not-found
+            [AC_MSG_WARN([Header files stdarg.h stddef.h setjmp.h are required by cmocka])
+             cmocka_required_headers="no"
+            ]
+        )
+        AS_IF([test x"$cmocka_required_headers" != x"no"],
+              [PKG_CHECK_MODULES([cmocka], [cmocka], [have_cmocka="yes"])]
+        )],
+        dnl PKG_CHECK_EXISTS ACTION-IF-NOT-FOUND
+        [AC_MSG_WARN([No libcmocka library found, cmocka tests will not be built])]
+    )
+    AM_CONDITIONAL([HAVE_CMOCKA], [test x$have_cmocka = xyes])
+])
+

m4/liblmdb.m4

+dnl A macro to check presence of liblmdb on the system
+AC_DEFUN([AM_CHECK_LMDB],
+[
+    PKG_CHECK_EXISTS(lmdb,
+        [AC_CHECK_HEADERS([lmdb.h],
+            [], dnl We are only intrested in action-if-not-found
+            [AC_MSG_WARN([Header file lmdb.h is required.])
+             lmdb_required_headers="no"
+            ]
+        )
+        AS_IF([test x"$lmdb_required_headers" != x"no"],
+              [PKG_CHECK_MODULES([lmdb], [lmdb], [have_lmdb="yes"])]
+        )],
+        dnl PKG_CHECK_EXISTS ACTION-IF-NOT-FOUND
+        [AC_MSG_WARN([No lmdb library found.])]
+    )
+    AM_CONDITIONAL([HAVE_LMDB], [test x$have_lmdb = xyes])
+])
+

m4/libuv.m4

+dnl A macro to check presence of libuv on the system
+AC_DEFUN([AM_CHECK_LIBUV],
+[
+    PKG_CHECK_EXISTS(libuv,
+        [AC_CHECK_HEADERS([uv.h],
+            [], dnl We are only intrested in action-if-not-found
+            [AC_MSG_WARN([Header file uv.h is required.])
+             libuv_required_headers="no"
+            ]
+        )
+        AS_IF([test x"$libuv_required_headers" != x"no"],
+              [PKG_CHECK_MODULES([libuv], [libuv], [have_libuv="yes"])]
+        )],
+        dnl PKG_CHECK_EXISTS ACTION-IF-NOT-FOUND
+        [AC_MSG_WARN([No libuv library found, libuv tests will not be built])]
+    )
+    AM_CONDITIONAL([HAVE_LIBUV], [test x$have_libuv = xyes])
+])
+