1 # Copyright (C) 2006-2013 OpenWrt.org
3 # This is free software, licensed under the GNU General Public License v2.
4 # See /LICENSE for more information.
7 menu "Global build settings"
10 bool "Select all packages by default"
13 comment "General build options"
15 config DISPLAY_SUPPORT
16 bool "Show packages that require graphics support (local or remote)"
21 bool "Compile with support for patented functionality"
23 When this option is disabled, software which provides patented functionality
24 will not be built. In case software provides optional support for patented
25 functionality, this optional support will get disabled for this package.
29 bool "Compile with full language support"
31 When this option is enabled, packages are built with the full versions of
32 iconv and GNU gettext instead of the default OpenWrt stubs. If uClibc is
33 used, it is also built with locale support.
35 config BUILD_STATIC_TOOLS
37 bool "Attempt to link host utilities statically"
39 Linking host utilities like sed or firmware-utils statically increases the
40 portability of the generated ImageBuilder and SDK tarballs; however, it may
41 fail on some Linux distributions.
43 config SHADOW_PASSWORDS
45 prompt "Enable shadow password support"
48 Enable shadow password support.
52 prompt "Remove ipkg/opkg status data files in final images"
55 This removes all ipkg/opkg status data files from the target directory
56 before building the root filesystem.
58 config COLLECT_KERNEL_DEBUG
60 prompt "Collect kernel debug information"
61 select KERNEL_DEBUG_INFO
64 This collects debugging symbols from the kernel and all compiled modules.
65 Useful for release builds, so that kernel issues can be debugged offline
68 comment "Kernel build options"
70 source "config/Config-kernel.in"
72 comment "Package build options"
76 prompt "Compile packages with debugging info"
79 Adds -g3 to the CFLAGS.
83 prompt "Enable IPv6 support in packages"
86 Enable IPv6 support in packages (passes --enable-ipv6 to configure scripts).
88 config PKG_BUILD_PARALLEL
90 prompt "Compile certain packages parallelized"
93 This adds a -jX option to certain packages that are known to behave well
94 for parallel build. By default, the package make processes use the main
95 jobserver, in which case this option only takes effect when you add -jX
98 If you are unsure, select N.
100 config PKG_CHECK_FORMAT_SECURITY
102 prompt "Enable gcc format-security"
105 Add -Wformat -Werror=format-security to the CFLAGS. You can disable
106 this per package by adding PKG_CHECK_FORMAT_SECURITY:=0 in the package
109 config PKG_BUILD_USE_JOBSERVER
111 prompt "Use top-level make jobserver for packages"
112 depends on PKG_BUILD_PARALLEL
115 This passes the main make process jobserver fds to package builds,
116 enabling full parallelization across different packages.
118 Note that disabling this may overcommit CPU resources depending on the
119 -j level of the main make process, the number of package submake jobs
120 selected below and the number of actual CPUs present.
121 Example: If the main make is passed a -j4 and the submake -j
122 is also set to 4, we may end up with 16 parallel make processes
125 config PKG_BUILD_JOBS
127 prompt "Number of package submake jobs (2-512)"
130 depends on PKG_BUILD_PARALLEL && !PKG_BUILD_USE_JOBSERVER
132 The number of jobs (-jX) to pass to packages submake.
134 config PKG_DEFAULT_PARALLEL
136 prompt "Parallelize the default package build rule (May break build)"
137 depends on PKG_BUILD_PARALLEL
141 Always set the default package build rules to parallel build.
143 WARNING: This may break build or kill your cat, as it builds packages
144 with multiple jobs that are probably not tested in a parallel build
147 Only say Y if you don't mind fixing broken packages. Before reporting
148 build bugs, set this to N and re-run the build.
150 comment "Stripping options"
153 prompt "Binary stripping method"
154 default USE_STRIP if EXTERNAL_TOOLCHAIN
155 default USE_STRIP if USE_GLIBC || USE_EGLIBC || USE_MUSL
158 Select the binary stripping method you wish to use.
163 This will install unstripped binaries (useful for native
164 compiling/debugging).
169 This will install binaries stripped using strip from binutils.
175 depends on !USE_GLIBC
176 depends on !USE_EGLIBC
178 This will install binaries stripped using sstrip.
183 prompt "Strip arguments"
185 default "--strip-unneeded --remove-section=.comment --remove-section=.note" if DEBUG
186 default "--strip-all"
188 Specifies arguments passed to the strip command when stripping binaries.
190 config STRIP_KERNEL_EXPORTS
191 bool "Strip unnecessary exports from the kernel image"
193 Reduces kernel size by stripping unused kernel exports from the kernel
194 image. Note that this might make the kernel incompatible with any kernel
195 modules that were not selected at the time the kernel image was created.
198 bool "Strip unnecessary functions from libraries"
200 Reduces libraries to only those functions that are necessary for using all
201 selected packages (including those selected as <M>). Note that this will
202 make the system libraries incompatible with most of the packages that are
203 not selected during the build process.
206 prompt "Preferred standard C++ library"
207 default USE_LIBSTDCXX if USE_EGLIBC
210 Select the preferred standard C++ library for all packages that support this.