Try to make etc/ci_test.sh work

.gitignore

@@ -4,4 +4,5 @@ Manifest.toml
 /tags
 *.log
 /coverage/
+*.gcov
 /override/

etc/ci_test.sh

@@ -9,17 +9,20 @@ mkdir -p coverage
 #
 cd pkg/JuliaInterface
 pwd
+# Force recompilation of JuliaInterface with coverage instrumentation
+FORCE_JULIAINTERFACE_COMPILATION=true JULIAINTERFACE_WITH_COVERAGE=true ${GAP} --nointeract
 ${GAP} makedoc.g
 ${GAP} --cover ../../coverage/JuliaInterface.coverage tst/testall.g || AnyFailures=Yes
-gcov -o gen/src/.libs src/*.c*
+gcov -o gen/src/ src/*.c*
+# Force recompilation of JuliaInterface without coverage instrumentation
+FORCE_JULIAINTERFACE_COMPILATION=true ${GAP} --nointeract
 cd ../..
 
 #
 cd pkg/JuliaExperimental
 pwd
 ${GAP} makedoc.g
 ${GAP} --cover ../../coverage/JuliaExperimental.coverage tst/testall.g || AnyFailures=Yes
-gcov -o gen/src/.libs src/*.c*
 cd ../..
 
 if [ ${AnyFailures} = Yes ]

src/setup.jl

@@ -212,13 +212,17 @@ function build_JuliaInterface(sysinfo::Dict{String, String})
     # paths involve spaces, but then we likely will haves problem in other
     # places; in any case, if anybody ever cares about this, we can work on
     # finding a better solution.
-    JULIA_CPPFLAGS = filter(c -> c != '\'', cflags())
+    JULIA_CFLAGS = filter(c -> c != '\'', cflags())
     JULIA_LDFLAGS = filter(c -> c != '\'', ldflags())
     JULIA_LIBS = filter(c -> c != '\'', ldlibs())
+    if get(ENV, "JULIAINTERFACE_WITH_COVERAGE", "false") == "true"
+        JULIA_CFLAGS *= " --coverage"
+        JULIA_LDFLAGS *= " --coverage"
+    end
 
     jipath = joinpath(@__DIR__, "..", "pkg", "JuliaInterface")
     cd(jipath) do
-        withenv("CFLAGS" => JULIA_CPPFLAGS,
+        withenv("CFLAGS" => JULIA_CFLAGS,
                 "LDFLAGS" => JULIA_LDFLAGS * " " * JULIA_LIBS) do
             run(pipeline(`./configure $(gaproot())`, stdout="build.log"))
             run(pipeline(`make V=1 -j$(Sys.CPU_THREADS)`, stdout="build.log", append=true))