Fix static linking of winpthread

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for gpx 2.5.1.
+# Generated by GNU Autoconf 2.69 for gpx 2.5.2.
 #
 # Report bugs to <https://github.com/markwal/GPX/issues>.
 #
@@ -580,8 +580,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='gpx'
 PACKAGE_TARNAME='gpx'
-PACKAGE_VERSION='2.5.1'
-PACKAGE_STRING='gpx 2.5.1'
+PACKAGE_VERSION='2.5.2'
+PACKAGE_STRING='gpx 2.5.2'
 PACKAGE_BUGREPORT='https://github.com/markwal/GPX/issues'
 PACKAGE_URL='https://github.com/markwal/GPX'
 
@@ -1308,7 +1308,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures gpx 2.5.1 to adapt to many kinds of systems.
+\`configure' configures gpx 2.5.2 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1379,7 +1379,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of gpx 2.5.1:";;
+     short | recursive ) echo "Configuration of gpx 2.5.2:";;
    esac
   cat <<\_ACEOF
 
@@ -1474,7 +1474,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-gpx configure 2.5.1
+gpx configure 2.5.2
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2027,7 +2027,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by gpx $as_me 2.5.1, which was
+It was created by gpx $as_me 2.5.2, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2890,7 +2890,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='gpx'
- VERSION='2.5.1'
+ VERSION='2.5.2'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -3089,7 +3089,7 @@ case $PLATFORM in
     win*)
         BDIST_TARGET="bdist-zip"
         CFLAGS="$CFLAGS -pthread"
-        LDFLAGS="$LDFLAGS -static -static-libgcc -pthread"
+        LDFLAGS="$LDFLAGS -static -static-libgcc -lpthread"
         ;;
     osx)
         BDIST_TARGET="bdist-dmg"
@@ -5666,7 +5666,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by gpx $as_me 2.5.1, which was
+This file was extended by gpx $as_me 2.5.2, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -5733,7 +5733,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-gpx config.status 2.5.1
+gpx config.status 2.5.2
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 

configure.ac

@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.69])
-AC_INIT([gpx], [2.5.1], [https://github.com/markwal/GPX/issues],,[https://github.com/markwal/GPX])
+AC_INIT([gpx], [2.5.2], [https://github.com/markwal/GPX/issues],,[https://github.com/markwal/GPX])
 AC_CONFIG_AUX_DIR([build-aux])
 AM_INIT_AUTOMAKE([foreign subdir-objects])
 AM_MAINTAINER_MODE([disable])
@@ -18,7 +18,7 @@ case $PLATFORM in
     win*)
         BDIST_TARGET="bdist-zip"
         CFLAGS="$CFLAGS -pthread"
-        LDFLAGS="$LDFLAGS -static -static-libgcc -pthread"
+        LDFLAGS="$LDFLAGS -static -static-libgcc -lpthread"
         ;;
     osx)
         BDIST_TARGET="bdist-dmg"