sci-calculators/wcalc: add patch to fix bashism

The software is dead upstream for several years, and it is sourceforge,
so I haven't forwarded it.

Signed-off-by: Eli Schwartz <eschwartz93@gmail.com>
Signed-off-by: Sam James <sam@gentoo.org>

sci-calculators/wcalc/files/0001-fix-bashism-in-configure-script.patch

@@ -0,0 +1,28 @@
+From b533584038a4ab8709fb8c88d7c4441f22b5de78 Mon Sep 17 00:00:00 2001
+From: Eli Schwartz <eschwartz93@gmail.com>
+Date: Wed, 13 Mar 2024 18:15:00 -0400
+Subject: [PATCH] fix bashism in configure script
+
+double equals is horrid and banned. Do not ever use it, but definitely
+don't use it in POSIX sh, where it doesn't exist *even* as an alias for
+single equals.
+---
+ configure.ac | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/configure.ac b/configure.ac
+index 1db142d..af541af 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -48,7 +48,7 @@ AC_PROG_RANLIB
+ AC_PROG_YACC
+ AM_PROG_AR
+ AM_PROG_LEX
+-AS_IF([test "x$LEX" == x],
++AS_IF([test "x$LEX" = x],
+ 	  [AC_MSG_ERROR([A Lex/Flex program is required in order to compile wcalc.])],
+ 	  [AS_IF([test "x$LEX" != xflex],
+ 			 [LEX="$SHELL $missing_dir/missing flex"
+-- 
+2.43.2
+

sci-calculators/wcalc/wcalc-2.5.ebuild

@@ -20,7 +20,10 @@ RDEPEND="
 	readline? ( sys-libs/readline:0= )"
 DEPEND="${RDEPEND}"
 
-PATCHES=( "${FILESDIR}"/${P}-AR.patch )
+PATCHES=(
+	"${FILESDIR}"/${P}-AR.patch
+	"${FILESDIR}"/0001-fix-bashism-in-configure-script.patch
+)
 
 src_prepare() {
 	default