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[PATCH] printf.m4: fix a bug in detecting printf %j support
From: |
Jim Meyering |
Subject: |
[PATCH] printf.m4: fix a bug in detecting printf %j support |
Date: |
Thu, 20 Oct 2016 09:43:24 -0700 |
Zev Weiss noticed that on a system with inadequate uintmax_t support,
printf.m4's gl_PRINTF_SIZES_C99 might nonetheless declare "yes".
This fixes it to handle that corner case.
printf.m4: fix a bug in detecting printf %j support
* m4/printf.m4 (gl_PRINTF_SIZES_C99): Fail any system for which
uintmax_t is defined in neither stdint.h nor inttypes.h.
Before, this macro might have mistakenly set
gl_cv_func_printf_sizes_c99=yes on such a system.
Spotted by Zev Weiss.
---
ChangeLog | 9 +++++++++
m4/printf.m4 | 2 ++
2 files changed, 11 insertions(+)
diff --git a/ChangeLog b/ChangeLog
index a1a314b..48b1d1d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2016-10-20 Jim Meyering <address@hidden>
+
+ printf.m4: fix a bug in detecting printf %j support
+ * m4/printf.m4 (gl_PRINTF_SIZES_C99): Fail any system for which
+ uintmax_t is defined in neither stdint.h nor inttypes.h.
+ Before, this macro might have mistakenly set
+ gl_cv_func_printf_sizes_c99=yes on such a system.
+ Spotted by Zev Weiss.
+
2016-10-19 Paul Eggert <address@hidden>
sched: substitute HAVE_SYS_CDEFS_H too
diff --git a/m4/printf.m4 b/m4/printf.m4
index e495e0c..c7a14b2 100644
--- a/m4/printf.m4
+++ b/m4/printf.m4
@@ -38,6 +38,8 @@ int main ()
if (sprintf (buf, "%ju %d", (uintmax_t) 12345671, 33, 44, 55) < 0
|| strcmp (buf, "12345671 33") != 0)
result |= 1;
+#else
+ result |= 1;
#endif
buf[0] = '\0';
if (sprintf (buf, "%zu %d", (size_t) 12345672, 33, 44, 55) < 0
--
2.8.0-rc2
- [PATCH] printf.m4: fix a bug in detecting printf %j support,
Jim Meyering <=