Explicit link to libpthread has been eliminated.

ChangeLog

@@ -3,6 +3,8 @@
 	* Following fixes have been contributed by Yutaka Niibe.
 	* qrencode.1.in:
 	  - "Hyphen-used-as-minus-sign" error has been fixed.
+	* configure.ac, libqrencode.pc.in, tests/Makefile.am:
+	  - Explicit link to libpthread has been eliminated.
 
 2012.04.01 Kentaro FUKUCHI <[email protected]>
 	[3.3]

README

@@ -120,13 +120,14 @@ countries.
 Reed-Solomon encoder is written by Phil Karn, KA9Q.
 Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
 
-NANKI Haruo          - improved lower-case characteres encoding
-Philippe Delcroix    - improved mask evaluation
-Yusuke Mihara        - structured-append support
-David Dahl           - DPI patch
-Adam Shepherd        - bug fix patch of the mask evaluation
-Josef Eisl (zapster) - EPS support patch
-Colin (moshen)       - ANSI support patch
-Ralf Ertzinger       - ASCII support patch
-Shigeyuki Hirai, Paul Janssens, wangsai, Gavan Fantom, Yutaka Niibe (gniibe),
-Matthew Baker - bug report / suggestion
+NANKI Haruo           - improved lower-case characteres encoding
+Philippe Delcroix     - improved mask evaluation
+Yusuke Mihara         - structured-append support
+David Dahl            - DPI patch
+Adam Shepherd         - bug fix patch of the mask evaluation
+Josef Eisl (zapster)  - EPS support patch
+Colin (moshen)        - ANSI support patch
+Ralf Ertzinger        - ASCII support patch
+Yutaka Niibe (gniibe) - various bug fix patches
+Shigeyuki Hirai, Paul Janssens, wangsai, Gavan Fantom, Matthew Baker
+ - bug report / suggestion

configure.ac

@@ -42,7 +42,7 @@ AC_ARG_ENABLE([thread-safety], [AS_HELP_STRING([--enable-thread-safety], [make t
  [], [enable_thread_safety=yes])
 
 if test x$enable_thread_safety = xyes; then
-	AC_CHECK_LIB([pthread], [pthread_mutex_init])
+	AC_CHECK_LIB([pthread], [pthread_mutex_init], [AC_SUBST([LIBPTHREAD], [-lpthread])])
 fi
 AM_CONDITIONAL([HAVE_LIBPTHREAD], [test "x$ac_cv_lib_pthread_pthread_mutex_init" = "xyes" ])
 

libqrencode.pc.in

@@ -6,5 +6,6 @@ includedir=@includedir@
 Name: libqrencode
 Description: A QR Code encoding library
 Version: @VERSION@
-Libs: -L${libdir} -lqrencode @LIBS@
+Libs: -L${libdir} -lqrencode
+Libs.private: @LIBPTHREAD@
 Cflags: -I${includedir}

tests/Makefile.am

@@ -55,7 +55,7 @@ prof_qrencode_SOURCES = prof_qrencode.c
 prof_qrencode_LDADD = ../libqrencode.la
 
 pthread_qrencode_SOURCES = pthread_qrencode.c
-pthread_qrencode_LDADD = ../libqrencode.la
+pthread_qrencode_LDADD = ../libqrencode.la $(LIBPTHREAD)
 
 create_frame_pattern_SOURCES = create_frame_pattern.c
 create_frame_pattern_CFLAGS = $(png_CFLAGS)