mailsend: fix compilation with GCC14

Also fix CFLAGS not being passed.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

mail/mailsend/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mailsend
 PKG_VERSION:=1.19
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/muquit/mailsend/archive/$(PKG_VERSION)
@@ -56,8 +56,18 @@ define Package/mailsend-nossl/description
   Mailsend is a simple command line program to send mail via SMTP protocol.
 endef
 
+TARGET_CFLAGS += \
+	-DHAVE_CTYPE_H \
+	-DHAVE_FCNTL_H \
+	-DHAVE_STDLIB_H \
+	-DHAVE_STRING_H \
+	-DHAVE_STRINGS_H \
+	-DHAVE_UNISTD_H \
+	-DSTDC_HEADERS \
+	-DTIME_WITH_SYS_TIME
+
 define Build/Compile
-	$(MAKE) -C $(PKG_BUILD_DIR)
+	$(MAKE) -C $(PKG_BUILD_DIR) DEFS="$(TARGET_CFLAGS)"
 endef
 
 define Package/mailsend/install

mail/mailsend/patches/010-gcc14.patch

@@ -0,0 +1,16 @@
+--- a/main.c
++++ b/main.c
+@@ -965,8 +965,13 @@ int main(int argc,char **argv)
+                 }
+                 else if (strncmp("show-mime-types",option+1,9) == 0)
+                 {
++#ifdef HAVE_OPENSSL
+                     show_mime_types();
+                     rc = 0;
++#else
++                    (void) fprintf(stderr,"Error: '-show-mime-types' not available, not compiled with OpenSSL\n");
++                    rc = 1;
++#endif
+                     goto ExitProcessing;
+                 }
+