Merge bitcoin/bitcoin#31461: depends: add -g to *BSD_debug flags

b7ec69c depends: add -g to *BSD_debug flags (fanquake)

Pull request description:

  To match the other HOST_debug_flags. Pulled out of #29796.

ACKs for top commit:
  theuni:
    utACK b7ec69c

Tree-SHA512: 654a6dc2c1e295021380f18565379ccde5c5bebcbb5e48ab0364aa79c6f15d301b4acf058d75629a4b217483c6788a0ecb60560e8701882e09490b92c4c346d0

depends/hosts/freebsd.mk

@@ -4,7 +4,7 @@ freebsd_CXXFLAGS=-pipe -std=$(CXX_STANDARD)
 freebsd_release_CFLAGS=-O2
 freebsd_release_CXXFLAGS=$(freebsd_release_CFLAGS)
 
-freebsd_debug_CFLAGS=-O1
+freebsd_debug_CFLAGS=-O1 -g
 freebsd_debug_CXXFLAGS=$(freebsd_debug_CFLAGS)
 
 ifeq (86,$(findstring 86,$(build_arch)))

depends/hosts/netbsd.mk

@@ -12,7 +12,7 @@ netbsd_CXXFLAGS=$(netbsd_CFLAGS)
 netbsd_release_CFLAGS=-O2
 netbsd_release_CXXFLAGS=$(netbsd_release_CFLAGS)
 
-netbsd_debug_CFLAGS=-O1
+netbsd_debug_CFLAGS=-O1 -g
 netbsd_debug_CXXFLAGS=$(netbsd_debug_CFLAGS)
 
 ifeq (86,$(findstring 86,$(build_arch)))

depends/hosts/openbsd.mk

@@ -4,7 +4,7 @@ openbsd_CXXFLAGS=-pipe -std=$(CXX_STANDARD)
 openbsd_release_CFLAGS=-O2
 openbsd_release_CXXFLAGS=$(openbsd_release_CFLAGS)
 
-openbsd_debug_CFLAGS=-O1
+openbsd_debug_CFLAGS=-O1 -g
 openbsd_debug_CXXFLAGS=$(openbsd_debug_CFLAGS)
 
 ifeq (86,$(findstring 86,$(build_arch)))