Description: Use -pthread instead of -lpthread.
 Fixes undefined reference to symbol 'pthread_create@@GLIBC_2.2.5'
Author: Bas Couwenberg <sebastic@debian.org>
Bug: https://www.gaia-gis.it/fossil/librasterlite2/tktview/4670684140648c2d35e639dc20d3e870858673f0
Bug-Debian: https://bugs.debian.org/971132
Forwarded: https://www.gaia-gis.it/fossil/librasterlite2/info/4670684140648c2d

--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -30,8 +30,8 @@ if MINGW
 librasterlite2_la_LDFLAGS = -avoid-version -no-undefined
 librasterlite2_la_LIBADD += -lm
 else
-librasterlite2_la_LDFLAGS = -version-info 1:0:0
-librasterlite2_la_LIBADD += -lpthread -lm
+librasterlite2_la_LDFLAGS = -version-info 1:0:0 -pthread
+librasterlite2_la_LIBADD += -lm
 endif
 
 mod_rasterlite2_la_SOURCES = rasterlite2.c rl2raw.c rl2codec.c \
@@ -58,8 +58,8 @@ if MINGW
 mod_rasterlite2_la_LDFLAGS = -module -avoid-version -no-undefined
 mod_rasterlite2_la_LIBADD += -lm
 else
-mod_rasterlite2_la_LDFLAGS = -module -version-info 1:0:0
-mod_rasterlite2_la_LIBADD += -lpthread -lm
+mod_rasterlite2_la_LDFLAGS = -module -version-info 1:0:0 -pthread
+mod_rasterlite2_la_LIBADD += -lm
 endif
 
 MOSTLYCLEANFILES = *.gcna *.gcno *.gcda