GNU bug report logs - #39999
make install fails on mac (Catilina, Guile-3.0.1)

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From: "W. Lincoln Harvey" <lincolnlaw <at> mac.com>
To: 39999 <at> debbugs.gnu.org
Subject: bug#39999: BSD sed vs Gnu sed
Date: Wed, 29 Apr 2020 12:30:22 -0700

Sorry; my explanation above is not correct.  
What I meant to say is that to edit a file in place WITHOUT CREATING a backup file, BSD sed’s -i option requires a zero-length string as a mandatory argument, while Gnu sed’s -i option does not take any argument.  If a backup file is wanted, then their option -i syntax is identical.

The INSTANTIATE macro as written is not including any argument to sed’s -i option, meaning that no backup file is wanted.  

Therefore, a very simply solution to this problem is to make a backup file, then delete it.  Both sed versions would work correctly.
A more complicated solution is to determine which version of sed is being used, and change the INSTANTIATE macro to use the correct syntax.

Gnu sed has a version option (—version), but BSD sed does not (it throws an error when either -v or —version are used).

wlh

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