syntax-check: Drop unused machinery

_equal is not used anywhere; the rest of the code implements the
syntax-check target, which takes care of figuring out the list of
checks that have been defined and running them, printing the name
of each check along with its execution time.

This was useful when we were using autotools, but these days we
have meson driving the entire build process and each of the
checks is registered as a separate test, which gives us all of
the features described above for free.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

diff --git a/build-aux/syntax-check.mk b/build-aux/syntax-check.mk
index 1252cb8eb446555f05309bb669735b7d997ba7a5..da0140c35561449cd65b0ce5a2b153a357928b65 100644 (file)
--- a/build-aux/syntax-check.mk
+++ b/build-aux/syntax-check.mk
@@ -32,11 +32,6 @@ AWK ?= awk
 _empty =
 _sp = $(_empty) $(_empty)
 
-# _equal,S1,S2
-# ------------
-# If S1 == S2, return S1, otherwise the empty string.
-_equal = $(and $(findstring $(1),$(2)),$(findstring $(2),$(1)))
-
 VC_LIST = cd $(top_srcdir); git ls-tree -r 'HEAD:' | \
           sed -n "s|^100[^     ]*.||p"
 
@@ -71,39 +66,6 @@ export LC_ALL = C
 ## Sanity checks.  ##
 ## --------------- ##
 
-_cfg_mk := $(wildcard $(top_srcdir)/build-aux/syntax-check.mk)
-
-# Collect the names of rules starting with 'sc_'.
-syntax-check-rules := $(sort $(shell $(SED) -n \
-   's/^\(sc_[a-zA-Z0-9_-]*\):.*/\1/p' $(top_srcdir)/$(ME) $(_cfg_mk)))
-.PHONY: $(syntax-check-rules)
-
-# Arrange to print the name of each syntax-checking rule just before running it.
-$(syntax-check-rules): %: %.m
-sc_m_rules_ = $(patsubst %, %.m, $(syntax-check-rules))
-.PHONY: $(sc_m_rules_)
-$(sc_m_rules_):
-       @echo $(patsubst sc_%.m, %, $@)
-       @date +%s.%N > .sc-start-$(basename $@)
-
-# Compute and print the elapsed time for each syntax-check rule.
-sc_z_rules_ = $(patsubst %, %.z, $(syntax-check-rules))
-.PHONY: $(sc_z_rules_)
-$(sc_z_rules_): %.z: %
-       @end=$$(date +%s.%N);                                           \
-       start=$$(cat .sc-start-$*);                                     \
-       rm -f .sc-start-$*;                                             \
-       $(AWK) -v s=$$start -v e=$$end                                  \
-         'END {printf "%.2f $(patsubst sc_%,%,$*)\n", e - s}' < /dev/null
-
-# The patsubst here is to replace each sc_% rule with its sc_%.z wrapper
-# that computes and prints elapsed time.
-local-check :=                                                         \
-  $(patsubst sc_%, sc_%.z,                                             \
-    $(filter-out $(local-checks-to-skip), $(syntax-check-rules)))
-
-syntax-check: $(local-check)
-
 # Files that should never cause syntax check failures.
 VC_LIST_ALWAYS_EXCLUDE_REGEX = \
   \.(po|ico|png)$$