projects / uclibc-ng.git / blame
| Commit | Line | Data |
|---|---|---|
| 81c61f37 | 1 | |
| ffc7bb39 | 2 | * Configuration: |
| 68822fc7 | 3 | |
| e696b81b | 4 | cp ./extra/Configs/Config.<target arch> ./Config |
| 68822fc7 | 5 | |
| 96277cfc EA |
6 | Then edit ./Config for your setup. In particular, modify CROSS and |
| 7 | KERNEL_SOURCE as necessary. You may also want to modify | |
| 8 | SHARED_LIB_LOADER_PATH, DEVEL_PREFIX, and SYSTEM_DEVEL_PREFIX depending | |
| 9 | on where you want to install the development environment. By default, | |
| 10 | the development environment is installed into /usr/<arch>-linux-uclibc/. | |
| ffc7bb39 EA |
11 | |
| 12 | ||
| 13 | * Building: | |
| 14 | ||
| 15 | make | |
| 16 | ||
| 17 | ||
| 18 | * Installing the development environment: | |
| 19 | ||
| 20 | (As root, if necessary,) | |
| 21 | ||
| 22 | make install | |
| 23 | ||
| 24 | This will install the header files, libraries, and the gcc | |
| 25 | wrapper into the directories defined in Config. | |
| 26 | ||
| ffc7bb39 EA |
27 | |
| 28 | * Installing the target runtime environment: | |
| 29 | ||
| 30 | (As root, if necessary,) | |
| 31 | ||
| 96277cfc | 32 | make PREFIX=<temporary path> install_target |
| ffc7bb39 EA |
33 | |
| 34 | This installs only the files that are necessary to run binaries | |
| 96277cfc EA |
35 | compiled against uClibc. Hint: You probably do not want to install |
| 36 | the target runtime environment on your host machine. | |
| ffc7bb39 EA |
37 | |
| 38 | ||
| 39 | * Using uClibc: | |
| 81c61f37 | 40 | |
| b261aef5 MNI |
41 | To compile programs with uClibc, |
| 42 | ||
| ffc7bb39 | 43 | export PATH={uClibc DEVEL_PREFIX}/bin:$PATH |
| b261aef5 MNI |
44 | |
| 45 | and then just ./configure and make as usual. | |
| dd4d42c2 | 46 | |
| ee185898 EA |
47 | Note: |
| 48 | ||
| 49 | You may also want to look at extra/gcc-uclibc/gcc-uclibc.c for | |
| 50 | additional information concerning what options and environment | |
| 51 | variables the gcc wrapper handles. | |
| 52 | ||
| 53 | Note2: | |
| 54 | ||
| 55 | There is an unwholesomely huge amount of code out there that | |
| 56 | depends on the presence of GNU libc header files. We have GNU | |
| 57 | libc header files. So we have committed a horrible sin in | |
| 58 | uClibc. We _lie_ and claim to be GNU libc in order to force | |
| 59 | many applications to work as their developers intended. This | |
| 60 | is IMHO, pardonable, since these defines are not really | |
| 61 | intended to check for the presence of a particular library, but | |
| 62 | rather are used to define an _interface_. Some programs (such | |
| 63 | as GNU binutils) are especially chummy with glibc, and need | |
| 64 | this behavior disabled by adding CFLAGS+=-D__FORCE_NOGLIBC |