diff options
Diffstat (limited to 'src/libstore/build.cc')
| -rw-r--r-- | src/libstore/build.cc | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc index f015b878c..db2bed6d0 100644 --- a/src/libstore/build.cc +++ b/src/libstore/build.cc @@ -40,6 +40,12 @@ #define CHROOT_ENABLED HAVE_CHROOT && HAVE_UNSHARE && HAVE_SYS_MOUNT_H && defined(MS_BIND) && defined(CLONE_NEWNS) +#if HAVE_SYS_PERSONALITY_H +#include <sys/personality.h> +#define CAN_DO_LINUX32_BUILDS +#endif + + namespace nix { using std::map; @@ -1474,7 +1480,11 @@ void DerivationGoal::startBuilder() format("building path(s) %1%") % showPaths(outputPaths(drv.outputs))) /* Right platform? */ - if (drv.platform != thisSystem) + if (drv.platform != thisSystem +#ifdef CAN_DO_LINUX32_BUILDS + && !(drv.platform == "i686-linux" && thisSystem == "x86_64-linux") +#endif + ) throw BuildError( format("a `%1%' is required to build `%3%', but I am a `%2%'") % drv.platform % thisSystem % drvPath); @@ -1806,6 +1816,13 @@ void DerivationGoal::startBuilder() initChild(); +#ifdef CAN_DO_LINUX32_BUILDS + if (drv.platform == "i686-linux" && thisSystem == "x86_64-linux") { + if (personality(PER_LINUX32_3GB) == -1) + throw SysError("cannot set i686-linux personality"); + } +#endif + /* Fill in the environment. */ Strings envStrs; for (Environment::const_iterator i = env.begin(); |