tools: add small and stupid script to check HAVE_DECL_

 use 'make checkdecl' to run the script

Signed-off-by: Karel Zak <kzak@redhat.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/tools/checkdecl.sh b/tools/checkdecl.sh
new file mode 100755
index 000000000..bd9ee6975
--- /dev/null
+++ b/tools/checkdecl.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+#
+# This script checkd for #ifdef HAVE_DECL_SYMBOL in code.
+#
+# Autoconf docs:
+#
+# Unlike the other autoconf ‘AC_CHECK_*S’ macros, when a symbol is not
+# declared, HAVE_DECL_symbol is defined to ‘0’ instead of leaving
+# HAVE_DECL_symbol undeclared. When you are sure that the check was performed,
+# use HAVE_DECL_symbol in #if.
+#
+
+if [ ! -f ./configure ]; then
+	echo "Not found configure script"
+	exit 1
+fi
+
+for decl in $(awk '/HAVE_DECL_.*ac_have_decl/ { print $2 }' configure); do 
+	git grep -nE '[[:blank:]]*#[[:blank:]]*if(ndef|def)[[:blank:]]*'$decl;
+done | sort -u