[Bug 212035] libnv fails to compile on 10.3Stable during buildworld with -DNDEBUG in CFLAGS (low priority)

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212035

            Bug ID: 212035
           Summary: libnv fails to compile on 10.3Stable during buildworld
                    with -DNDEBUG in CFLAGS (low priority)
           Product: Base System
           Version: 10.3-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: dewayne at heuristicsystems.com.au
                CC: freebsd-amd64 at FreeBSD.org
                CC: freebsd-amd64 at FreeBSD.org

Defining NDEBUG on the CFLAGS variable inhibits compilation of libnv as
follows:

# cd /pd3/src; MAKEOBJDIRPREFIX=/usr/obj/pd3/src/tmp
cc  -fpic -DPIC  -O2 -pipe -g0 -ggdb0 -DNDEBUG -DSTRIP_FBSDID -UDEBUGGING
-UDEBUG  -DUSB_HAVE_DISABLE_ENUM -march=core-avx-i 
-I/pd3/src/lib/libnv/../../sys -I/pd3/src/lib/libnv -std=gnu99
-Qunused-arguments  -fstack-protector -Wsystem-headers -Werror -Wall
-Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes
-Wmissing-prototypes -Wpointer-arith -Wreturn-type -Wcast-qual -Wwrite-strings
-Wswitch -Wshadow -Wunused-parameter -Wcast-align -Wchar-subscripts -Winline
-Wnested-externs -Wredundant-decls -Wold-style-definition
-Wmissing-variable-declarations -Wno-pointer-sign -Wno-empty-body
-Wno-string-plus-int -Wno-unused-const-variable  -c
/pd3/src/lib/libnv/../../sys/kern/subr_nvlist.c -o subr_nvlist.So
/pd3/src/lib/libnv/../../sys/kern/subr_nvlist.c:982:36: error: unused parameter
'nvl' [-Werror,-Wunused-parameter]
nvlist_next_nvpair(const nvlist_t *nvl, const nvpair_t *nvp)
                                   ^
/pd3/src/lib/libnv/../../sys/kern/subr_nvlist.c:998:36: error: unused parameter
'nvl' [-Werror,-Wunused-parameter]
nvlist_prev_nvpair(const nvlist_t *nvl, const nvpair_t *nvp)

---------
Whereas same comand without NDEBUG produces an object file.

Discovered while trying to build a world without DEBUG code, and inadvertently
-DNDEBUG when I should -UDEBUG. :}

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