diff --git a/en_US.ISO8859-1/books/porters-handbook/book.sgml b/en_US.ISO8859-1/books/porters-handbook/book.sgml
index 99e0e68728..940567418e 100644
--- a/en_US.ISO8859-1/books/porters-handbook/book.sgml
+++ b/en_US.ISO8859-1/books/porters-handbook/book.sgml
@@ -7889,15 +7889,15 @@ bopm:*:717:
both CC and CXX
variables follows. Note the ?=:
- CC ?= gcc
- CXX ?= g++
+ CC?= gcc
+ CXX?= g++
Here is an example which respects neither
CC nor CXX
variables:
- CC = gcc
- CXX = g++
+ CC= gcc
+ CXX= g++
Both CC and CFLAGS
variables can be defined on FreeBSD systems in
@@ -7925,12 +7925,12 @@ bopm:*:717:
the CFLAGS variable follows. Note the
+=:
- CFLAGS += -Wall -Werror
+ CFLAGS+= -Wall -Werror
Here is an example which does not respect the
CFLAGS variable:
- CFLAGS = -Wall -Werror
+ CFLAGS= -Wall -Werror
The CFLAGS variable is defined on
FreeBSD systems in /etc/make.conf. The
@@ -7944,13 +7944,13 @@ bopm:*:717:
contains system-wide optimization flags. An example from
an unmodified Makefile:
- CFLAGS = -O3 -funroll-loops -DHAVE_SOUND
+ CFLAGS= -O3 -funroll-loops -DHAVE_SOUND
Using system optimization flags, the
Makefile would look similar to the
following example:
- CFLAGS += -DHAVE_SOUND
+ CFLAGS+= -DHAVE_SOUND