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configure: Have --enable-dev-build turn on better debugging.

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Turn on '-g3 and -O0' for compilation.  Additionally
document the --enable-dev-build flag in our documentation.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2017-09-07 09:39:15 -04:00
parent c00ad29fc4
commit 09329dbcf7
2 changed files with 21 additions and 15 deletions
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32
configure.ac
View file

@ -185,6 +185,23 @@ CC="${CC% -std=c99}"
AC_C_FLAG([-std=gnu11], [CC="$ac_cc"], [CC="$CC -std=gnu11"])
dnl if the user has specified any CFLAGS, override our settings
if test "x${enable_dev_build}" = "xyes"; then
AC_DEFINE(DEV_BUILD,,Build for development)
if test "z$orig_cflags" = "z"; then
AC_C_FLAG([-g3])
AC_C_FLAG([-O0])
fi
else
if test "z$orig_cflags" = "z"; then
AC_C_FLAG([-g])
AC_C_FLAG([-Os], [
AC_C_FLAG([-O2])
])
fi
fi
AM_CONDITIONAL([DEV_BUILD], [test "x$enable_dev_build" = "xyes"])
dnl always want these CFLAGS
AC_C_FLAG([-fno-omit-frame-pointer])
AC_C_FLAG([-funwind-tables])
@ -428,21 +445,6 @@ fi
AM_CONDITIONAL([FPM], [test "x$enable_fpm" = "xyes"])
if test "x${enable_dev_build}" = "xyes"; then
AC_DEFINE(DEV_BUILD,,Build for development)
AC_C_FLAG([-g])
AC_C_FLAG([-O0])
else
dnl if the user specified any CFLAGS, we don't add "-g -Os/-O2" here
if test "z$orig_cflags" = "z"; then
AC_C_FLAG([-g])
AC_C_FLAG([-Os], [
AC_C_FLAG([-O2])
])
fi
fi
AM_CONDITIONAL([DEV_BUILD], [test "x$enable_dev_build" = "xyes"])
#
# Python for clippy
#

4
doc/install.texi
View file

@ -97,6 +97,10 @@ Controls backtrace support for the crash handlers. This is autodetected by
default. Using the switch will enforce the requested behaviour, failing with
an error if support is requested but not available. On BSD systems, this
needs libexecinfo, while on glibc support for this is part of libc itself.
@item --enable-dev-build
Turn on some options for compiling FRR within a development environment in
mind. Specifically turn on -g3 -O0 for compiling options and add inclusion
of grammar sandbox.
@end table
You may specify any combination of the above options to the configure