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authormidipix <writeonce@midipix.org>2018-11-25 05:05:44 -0500
committermidipix <writeonce@midipix.org>2018-11-25 09:17:31 -0500
commiteb3d1adb42aeea3d92929554d93b536256b01ca0 (patch)
tree5a0e488b7db6b027759c7547e31cc4085f512936 /sysinfo/os
parent8b45c8b2285b75dcd6881e18a5b74b5920fc619b (diff)
downloadbfirm-eb3d1adb42aeea3d92929554d93b536256b01ca0.tar.bz2
bfirm-eb3d1adb42aeea3d92929554d93b536256b01ca0.tar.xz
build system: PE, ELF: defined DSO_REF_VER, DSO_REF_SONAME, DSO_REF_SOLINK.
These definitions come in handy when a project generates alongside its ``primary shared library'' one or more ``extension libraries'' that depend on it. When the rules for generating extension libraries use the $^ directive, the above dependency must be declared in a target-aware manner. In most cases, one would want to express this dependency by way of $(DSO_REF_SONAME), thereby pulling in lib/libfoo.so.$(MAJOR) on ELF targets, lib/libfoo.$(MAJOR).lib.a on midipix targets, and lib/libfoo.$(MAJOR).dll.a on win32 targets.
Diffstat (limited to 'sysinfo/os')
-rw-r--r--sysinfo/os/elf.mk4
-rw-r--r--sysinfo/os/pe.mk4
2 files changed, 8 insertions, 0 deletions
diff --git a/sysinfo/os/elf.mk b/sysinfo/os/elf.mk
index 5a3940f..6878c6a 100644
--- a/sysinfo/os/elf.mk
+++ b/sysinfo/os/elf.mk
@@ -1,2 +1,6 @@
+DSO_REF_VER = $(SHARED_LIB)
+DSO_REF_SONAME = $(SHARED_SONAME)
+DSO_REF_SOLINK = $(SHARED_SOLINK)
+
LDFLAGS_SHARED += -Wl,-soname
LDFLAGS_SHARED += -Wl,$(DSO_SONAME)
diff --git a/sysinfo/os/pe.mk b/sysinfo/os/pe.mk
index e8e1759..c3c5ba0 100644
--- a/sysinfo/os/pe.mk
+++ b/sysinfo/os/pe.mk
@@ -1,3 +1,7 @@
+DSO_REF_VER = $(IMPLIB_VER)
+DSO_REF_SONAME = $(IMPLIB_SONAME)
+DSO_REF_SOLINK = $(IMPLIB_SOLINK)
+
LDFLAGS_IMPLIB += -Wl,--output-def
LDFLAGS_IMPLIB += -Wl,$(IMPLIB_DEF)
LDFLAGS_SHARED += $(LDFLAGS_IMPLIB)