Mon May 29 13:49 jumelv@marsyas:~/save/PlanFacile-futur_2.0$ ./configure --prefix=/mn/sarpanitu/gjester-u1/jumelv/usr/
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking target system type... i686-pc-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for style of include used by make... GNU
checking dependency style of gcc... gcc3
checking whether gcc accepts -Wall... yes
checking for flex... flex
checking for yywrap in -lfl... yes
checking lex output file root... lex.yy
checking whether yytext is a pointer... yes
checking whether flex is able to build lexical parser... no
configure: error: You need to upgrade flex to version 2.5.31 or later!
Mon May 29 13:50 jumelv@marsyas:~/save/PlanFacile-futur_2.0$