From bec2ba5b4005053ce8f7048fa825ed58e3adfdc2 Mon Sep 17 00:00:00 2001
From: Dan McGee <dan@archlinux.org>
Date: Mon, 7 Apr 2008 18:36:18 -0500
Subject: Add check for swprintf() and a workaround when it is missing

We use this function once in our codebase, but fortunately the workaround is
relatively easy. swprintf() is not available on Cygwin so the compile failed
there, but we can do a series of mbstowcs() calls that produce the same end
result as the swprintf() call.

Signed-off-by: Dan McGee <dan@archlinux.org>
---
 src/pacman/callback.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src/pacman')

diff --git a/src/pacman/callback.c b/src/pacman/callback.c
index 01e65a95..a7686483 100644
--- a/src/pacman/callback.c
+++ b/src/pacman/callback.c
@@ -393,7 +393,17 @@ void cb_trans_progress(pmtransprog_t event, const char *pkgname, int percent,
 	len = strlen(opr) + ((pkgname) ? strlen(pkgname) : 0) + 2;
 	wcstr = calloc(len, sizeof(wchar_t));
 	/* print our strings to the alloc'ed memory */
+#if defined(HAVE_SWPRINTF)
 	wclen = swprintf(wcstr, len, L"%s %s", opr, pkgname);
+#else
+	/* because the format string was simple, we can easily do this without
+	 * using swprintf, although it is probably not as safe/fast. The max
+	 * chars we can copy is decremented each time by subtracting the length
+	 * of the already printed/copied wide char string. */
+	wclen = mbstowcs(wcstr, opr, len);
+	wclen += mbstowcs(wcstr + wclen, " ", len - wclen);
+	wclen += mbstowcs(wcstr + wclen, pkgname, len - wclen);
+#endif
 	wcwid = wcswidth(wcstr, wclen);
 	padwid = textlen - wcwid;
 	/* if padwid is < 0, we need to trim the string so padwid = 0 */
-- 
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