Bug#891532: captagent FTBFS with shared libfl

[Adrian Bunk]

Source: captagent
Version: 6.1.0.20-3
Severity: serious
Tags: buster sid

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/captagent.html

...
checking whether make sets $(MAKE)... (cached) yes
checking for flex... flex
checking lex output file root... lex.yy
checking lex library... -lfl
checking whether yytext is a pointer... yes
checking for bison... bison -y
checking for pthread_create in -lpthread... yes
checking for dlopen in -ldl... yes
checking for XML_ParserCreate in -lexpat... yes
checking for pcap_open_live in -lpcap... yes
checking for json_object_get in -ljson... no
checking for json_object_get in -ljson-c... yes
checking for yywrap in -lfl... no
configure: error: captagent requires but cannot find libfl


Fix attached.
-------------- next part --------------
Description: AC_CHECK_LIB(fl, yywrap) doesn't work with shared libfl
Author: Adrian Bunk <bunk at debian.org>

--- captagent-6.1.0.20.orig/configure.ac
+++ captagent-6.1.0.20/configure.ac
@@ -153,6 +153,10 @@ AC_PROG_LEX
 if test "$LEX" != "flex"; then
 	AC_MSG_ERROR([flex not found. Please install flex])
 fi
+if test "x$LEXLIB" = "x"; then
+	AC_MSG_ERROR([captagent requires but cannot find libfl])
+fi
+
 
 if test -z "`echo %%|$LEX -t|grep yypop_buffer_state`"; then
 	AC_MSG_ERROR([flex missing yypop_buffer_state - upgrade to version 2.5.33 or later])
@@ -181,8 +185,6 @@ echo "        If it is in a different di
 echo "        the LDFLAGS to set its proper path.";
 AC_MSG_ERROR([Fatal:  libjson not found.])])])
 
-AC_CHECK_LIB(fl, yywrap, [ FLEX_LIBS="-lfl" ] , [AC_MSG_ERROR([captagent requires but cannot find libfl])])
-
 AC_SUBST(PTHREAD_LIBS)
 AC_SUBST(DL_LIBS)
 AC_SUBST(EXPAT_LIBS)
--- captagent-6.1.0.20.orig/src/Makefile.am
+++ captagent-6.1.0.20/src/Makefile.am
@@ -19,6 +19,6 @@ AM_CPPFLAGS = -DSYSCONFDIR='"$(sysconfdi
 BUILT_SOURCES = capplan.tab.h
 noinst_HEADERS = md5.h captagent.h conf_function.h
 captagent_SOURCES = captagent.c conf_function.c log.c md5.c modules.c xmlread.c capplan.l capplan.tab.y
-captagent_LDADD = ${PTHREAD_LIBS} ${EXPAT_LIBS} ${DL_LIBS} ${FLEX_LIBS}
+captagent_LDADD = ${PTHREAD_LIBS} ${EXPAT_LIBS} ${DL_LIBS} ${LEXLIB}
 captagentconfdir = $(sysconfdir)/$(bin_PROGRAMS)
 captagentconf_DATA = $(top_srcdir)/conf/$(bin_PROGRAMS).xml