Add test for flex bug as part of make, and point them to README.flex.

diff --git a/src/GNUmakefile.in b/src/GNUmakefile.in
index 5a25488a4e04c3a6ecf9fca7853d95495b7e4315..d34beb9fbd678c51f0730e2ccb15287e770b2611 100644 (file)
--- a/src/GNUmakefile.in
+++ b/src/GNUmakefile.in
@@ -7,7 +7,7 @@
 #
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/Attic/GNUmakefile.in,v 1.12 1997/04/15 18:17:43 scrappy Exp $
+#    $Header: /cvsroot/pgsql/src/Attic/GNUmakefile.in,v 1.13 1997/05/14 03:32:16 momjian Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -30,6 +30,7 @@ all:
      false ;\
         else true;\
    fi
+   $(MAKE) -C lextest all
    $(MAKE) -C utils all
    $(MAKE) -C backend all
    $(MAKE) -C libpq all

diff --git a/src/lextest/Makefile b/src/lextest/Makefile
new file mode 100644 (file)
index 0000000..efbc20d
--- /dev/null
+++ b/src/lextest/Makefile
@@ -0,0 +1,13 @@
+#
+# Makefile - tests for 2.5.3 flex bug
+#
+#
+lextest : lextest.c scan.l
+   $(LEX) scan.l
+   $(CC) -c lex.yy.c
+   $(CC) -c lextest.c
+   $(CC) -o lextest lex.yy.o lextest.o
+   @echo "If this fails, flex is broken" | lextest || echo "You have a buggy version of flex.  Read doc/README.flex for a fix."
+
+clean:
+   rm -f lextest lex.yy.c lex.yy.o lextest.o

diff --git a/src/lextest/lextest.c b/src/lextest/lextest.c
new file mode 100644 (file)
index 0000000..e8089f2
--- /dev/null
+++ b/src/lextest/lextest.c
@@ -0,0 +1,10 @@
+main()
+{
+   yylex();
+   return;
+}
+
+yywrap()
+{
+   return 1;
+};

diff --git a/src/lextest/scan.l b/src/lextest/scan.l
new file mode 100644 (file)
index 0000000..6f80137
--- /dev/null
+++ b/src/lextest/scan.l
@@ -0,0 +1,10 @@
+/*
+   This should work, but non-patched flex 2.5.3 fails because input()
+   doesn't return EOF
+   Bruce Momjian 
+*/
+%%
+.      {
+               while (input() != EOF)
+               ;
+       }