[R-SIG-Mac] Failing to build R-devel: lzma.h missing

[Duncan Murdoch]

Thanks, that was it.  I had something similar to yours, but mine 
depended on $LOCAL as in the R-admin value, and I didn't have $LOCAL set 
properly.

Duncan

On 2026-04-19 3:44 a.m., peter dalgaard wrote:
> I have
> 
> $ cat ~/r-devel/BUILD/config.site
> CPPFLAGS=-I/opt/R/x86_64/include
> LDFLAGS=-L/opt/R/x86_64/lib
> with_tcl_config=/opt/R/x86_64/lib/tclConfig.sh
> with_tk_config=/opt/R/x86_64/lib/tkConfig.sh
> 
> (even though Simon says I shouldn't use config files...)
> 
> I.e. you may need to set the *FLAGS in your setup (switch out the arch of course).
> 
> -pd
> 
> 
>> On 18 Apr 2026, at 22.34, Duncan Murdoch <murdoch.duncan using gmail.com> wrote:
>>
>> I'm trying to build R-devel.  I used this command line to configure it:
>>
>> ../R-devel-src//configure -C --enable-R-shlib --enable-memory-profiling --x-includes=/opt/X11/include --x-libraries=/opt/X11/lib --with-tcl-config=/opt/R/arm64/lib/tclConfig.sh --with-tk-config=/opt/R/arm64/lib/tkConfig.sh PKG_CONFIG_PATH=/opt/R/arm64/lib/pkgconfig:/usr/lib/pkgconfig
>>
>> (I found that in the old config.log, with "pkg-config" in the PKG_CONFIG_PATH instead of "pkgconfig".  Neither one works.  I think it also matches the suggestion in the R-admin manual.)  Is there something missing?  It fails with this error at the end:
>>
>>
>>   checking for lzma_version_number in -llzma... yes
>>   checking for lzma.h... no
>>   configure: error: "liblzma library and headers are required"
>>
>> But I see lzma.h in /opt/R/arm64/include, and that's where pkg-config --cflags liblzma says it should be.  I tried removing PKG_CONFIG_PATH and got the same result.
>>
>> Duncan Murdoch
>>
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