X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=INSTALL;h=f6801f759f4b07e3bc8fdbb35c9d3e3fda59000b;hb=9219c8ded06600040fa6d862a60325b5afc73df4;hp=6bac2a81805c4714f02527ee414671a4c4c0aed0;hpb=58a21a9b07f5f6666d09bb8c0b9bf9150baca513;p=p5sagit%2Fp5-mst-13.2.git diff --git a/INSTALL b/INSTALL index 6bac2a8..f6801f7 100644 --- a/INSTALL +++ b/INSTALL @@ -1748,13 +1748,20 @@ File::Glob dynamically, for extensions one needs MakeMaker and MakeMaker is not yet cross-compilation aware, and neither is the main Makefile. +Since the functionality is so lacking, it must be considered +highly experimental. It is so experimental that it is not even +mentioned during an interactive Configure session, a direct comand +line invocation (detailed shortly) is required to access the +functionality. + NOTE: Perl is routinely built using cross-compilation in the EPOC environment but the solutions from there - can't directly be used. + can't directly be used elsewhere. The one environment where cross-compilation has successfully been used as of this writing is the Compaq iPAQ running ARM Linux. The build -host was Intel Linux, the networking setup was PPP + SSH, see +host was Intel Linux, the networking setup was PPP + SSH. The exact +setup details are beyond the scope of this document, see http://www.handhelds.org/ for more information. To run Configure in cross-compilation mode the basic switch is @@ -1781,18 +1788,18 @@ happens), supply Configure with -Dtargethost=so.me.ho.st -Dtargetdir=/tar/get/dir The targethost is what e.g. ssh will use as the hostname, the targetdir -must exists (the scripts won't create it). You can also specify a -username to use +must exist (the scripts won't create it), the targetdir defaults to /tmp. +You can also specify a username to use for ssh/rsh logins -Dtargetuser=luser but in case you don't, "root" will be used. -Because this is a cross-compilation effort, you will also need to -specify which target environment and which compilation environment to -use. This includes the compiler, the header files, and the libraries. -In the below we will use the usual settings for the iPAQ -cross-compilation environment: +Because this is a cross-compilation effort, you will also need to specify +which target environment and which compilation environment to use. +This includes the compiler, the header files, and the libraries. +In the below we use the usual settings for the iPAQ cross-compilation +environment: -Dtargetarch=arm-linux -Dcc=arm-linux-gcc @@ -1803,7 +1810,10 @@ cross-compilation environment: If the name of the C has the usual GNU C semantics for cross compilers, that is, CPU-OS-gcc, the names of the C, C, and C will also be automatically chosen to be CPU-OS-ar and so on. -(The C requires more thought and will be chosen later by Configure.) +(The C requires more thought and will be chosen later by Configure +as appropriate.) Also, in this case the incpth, libpth, and usrinc +will be guessed by Configure (unless explicitly set to something else, +in which case Configure's guesses with be appended). In addition to the default execution/transfer methods you can also choose B for execution, and B or B for transfer, @@ -1814,7 +1824,8 @@ for example: Putting it all together: sh ./Configure -des -Dusecrosscompile \ - -Dtargethost=so.me.ho.st -Dtargetdir=/tar/get/dir \ + -Dtargethost=so.me.ho.st \ + -Dtargetdir=/tar/get/dir \ -Dtargetuser=root \ -Dtargetarch=arm-linux \ -Dcc=arm-linux-gcc \ @@ -1823,6 +1834,13 @@ Putting it all together: -Dlibpth=/skiff/local/arm-linux/lib \ -D... +or if you are happy with the defaults + + sh ./Configure -des -Dusecrosscompile \ + -Dtargethost=so.me.ho.st \ + -Dcc=arm-linux-gcc \ + -D... + =head1 make test This will run the regression tests on the perl you just made. If