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commit    52a301e0d95aa25aa9bbc0eefd1167458e3e0cab
Author:   Tom Lane <tgl@sss.pgh.pa.us>
Date:     Sun Jan 13 18:33:50 2019 +0000

    Improve missing-program error handling in make_ctags and make_etags.
    
    If ctags (resp. etags) isn't installed, these scripts naturally fail,
    but the error messages were less clear than one could wish.
    It seems worth installing an explicit test to improve that.
    
    Nikolay Shaplov, with suggestions from Michael Paquier and Andrew Dunstan
    
    Discussion: https://postgr.es/m/2394207.ccz7JgCJsh@x200m


 src/tools/make_ctags | 3 +++
 src/tools/make_etags | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/src/tools/make_ctags b/src/tools/make_ctags
index 1609c07675..d8d18d1569 100755
--- a/src/tools/make_ctags
+++ b/src/tools/make_ctags
@@ -2,6 +2,9 @@
 
 # src/tools/make_ctags
 
+command -v ctags >/dev/null || \
+	{ echo "'ctags' program not found" 1>&2; exit 1; }
+
 trap "rm -f /tmp/$$" 0 1 2 3 15
 rm -f ./tags
 
diff --git a/src/tools/make_etags b/src/tools/make_etags
index 3ce96bc3ca..9288ef7b14 100755
--- a/src/tools/make_etags
+++ b/src/tools/make_etags
@@ -2,6 +2,9 @@
 
 # src/tools/make_etags
 
+command -v etags >/dev/null || \
+	{ echo "'etags' program not found" 1>&2; exit 1; }
+
 rm -f ./TAGS
 
 find `pwd`/ -type f -name '*.[chyl]' -print |


[parent: 9f527a6e9a70]