maint.mk: new syntax check for HAVE_DECL checks

[gnulib.git] / top / maint.mk

diff --git a/top/maint.mk b/top/maint.mk
index 0023989..5ca1a31 100644 (file)
--- a/top/maint.mk
+++ b/top/maint.mk
@@ -777,6 +777,11 @@ sc_prohibit_always_true_header_tests:
        '  with the corresponding gnulib module, they are always true') \
          $(_sc_search_regexp)
 
+sc_prohibit_defined_have_decl_tests:
+       prohibit='#[     ]*if(n?def|.*\<defined)\>[      (]+HAVE_DECL_' \
+       halt='$(ME): HAVE_DECL macros are always defined'               \
+         $(_sc_search_regexp)
+
 # ==================================================================
 gl_other_headers_ ?= \
   intprops.h   \