check for pkg-config/pkg.m4 availability

Closes: #392
resurrecting-open-source-projects · Dec 30, 2024 · 3f07e18 · 3f07e18
1 parent 1f69bb2
commit 3f07e18
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/configure.ac b/configure.ac
@@ -45,6 +45,8 @@ AS_IF([test "x$orig_CFLAGS" = "x"], [
 ])
 
 # Checks for libraries.
+m4_ifndef([PKG_PREREQ],
+     [m4_fatal([either pkg-config or pkg.m4 is not installed])])
 PKG_CHECK_MODULES([SCROT_DEPS], ["$srcdir/deps.pc"])
 
 # TODO: When -Wpedantic and -Werror are both set: