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gh-129388: Use user supplied env vars when checking for gdbm deps #129389

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gh-129388: Use user supplied env vars when checking for gdbm deps #129389

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gh-129388: Use user supplied env vars when checking for gdbm deps
erlend-aasland Jan 28, 2025
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erlend-aasland Jan 28, 2025
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erlend-aasland Jan 28, 2025
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104 changes: 39 additions & 65 deletions configure
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70 changes: 33 additions & 37 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -4404,14 +4404,42 @@ WITH_SAVE_ENV([
GDBM_LIBS=${GDBM_LIBS-"-lgdbm"}
], [have_gdbm=no])
], [have_gdbm=no])
])

dnl check for _dbmmodule.c dependencies
dnl ndbm, gdbm_compat, libdb
AC_CHECK_HEADERS([ndbm.h], [
WITH_SAVE_ENV([
dnl check for _dbmmodule.c dependencies
dnl ndbm, gdbm_compat, libdb
AC_CHECK_HEADERS([ndbm.h], [
Comment on lines +4408 to +4410
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I think we're fine keeping this inside the GDBM_* env flag context, since this check also encompasses GDBM compat.

AC_SEARCH_LIBS([dbm_open], [ndbm gdbm_compat])
])

dnl "gdbm-ndbm.h" and "gdbm/ndbm.h" are both normalized to "gdbm_ndbm_h"
dnl unset ac_cv_header_gdbm_ndbm_h to prevent false positive cache hits.
AS_UNSET([ac_cv_header_gdbm_ndbm_h])
AC_CACHE_VAL([ac_cv_header_gdbm_slash_ndbm_h], [
AC_CHECK_HEADER(
[gdbm/ndbm.h],
[ac_cv_header_gdbm_slash_ndbm_h=yes], [ac_cv_header_gdbm_slash_ndbm_h=no]
)
])
AS_VAR_IF([ac_cv_header_gdbm_slash_ndbm_h], [yes], [
AC_DEFINE([HAVE_GDBM_NDBM_H], [1], [Define to 1 if you have the <gdbm/ndbm.h> header file.])
])

AS_UNSET([ac_cv_header_gdbm_ndbm_h])
AC_CACHE_VAL([ac_cv_header_gdbm_dash_ndbm_h], [
AC_CHECK_HEADER(
[gdbm-ndbm.h],
[ac_cv_header_gdbm_dash_ndbm_h=yes], [ac_cv_header_gdbm_dash_ndbm_h=no]
)
])
AS_VAR_IF([ac_cv_header_gdbm_dash_ndbm_h], [yes], [
AC_DEFINE([HAVE_GDBM_DASH_NDBM_H], [1], [Define to 1 if you have the <gdbm-ndbm.h> header file.])
])
AS_UNSET([ac_cv_header_gdbm_ndbm_h])

if test "$ac_cv_header_gdbm_slash_ndbm_h" = yes -o "$ac_cv_header_gdbm_dash_ndbm_h" = yes; then
AS_UNSET([ac_cv_search_dbm_open])
AC_SEARCH_LIBS([dbm_open], [gdbm_compat], [have_gdbm_compat=yes], [have_gdbm_compat=no])
fi
])

AC_MSG_CHECKING([for ndbm presence and linker args])
Expand All @@ -4428,38 +4456,6 @@ AS_CASE([$ac_cv_search_dbm_open],
)
AC_MSG_RESULT([$have_ndbm ($dbm_ndbm)])

dnl "gdbm-ndbm.h" and "gdbm/ndbm.h" are both normalized to "gdbm_ndbm_h"
dnl unset ac_cv_header_gdbm_ndbm_h to prevent false positive cache hits.
AS_UNSET([ac_cv_header_gdbm_ndbm_h])
AC_CACHE_VAL([ac_cv_header_gdbm_slash_ndbm_h], [
AC_CHECK_HEADER(
[gdbm/ndbm.h],
[ac_cv_header_gdbm_slash_ndbm_h=yes], [ac_cv_header_gdbm_slash_ndbm_h=no]
)
])
AS_VAR_IF([ac_cv_header_gdbm_slash_ndbm_h], [yes], [
AC_DEFINE([HAVE_GDBM_NDBM_H], [1], [Define to 1 if you have the <gdbm/ndbm.h> header file.])
])

AS_UNSET([ac_cv_header_gdbm_ndbm_h])
AC_CACHE_VAL([ac_cv_header_gdbm_dash_ndbm_h], [
AC_CHECK_HEADER(
[gdbm-ndbm.h],
[ac_cv_header_gdbm_dash_ndbm_h=yes], [ac_cv_header_gdbm_dash_ndbm_h=no]
)
])
AS_VAR_IF([ac_cv_header_gdbm_dash_ndbm_h], [yes], [
AC_DEFINE([HAVE_GDBM_DASH_NDBM_H], [1], [Define to 1 if you have the <gdbm-ndbm.h> header file.])
])
AS_UNSET([ac_cv_header_gdbm_ndbm_h])

if test "$ac_cv_header_gdbm_slash_ndbm_h" = yes -o "$ac_cv_header_gdbm_dash_ndbm_h" = yes; then
AS_UNSET([ac_cv_search_dbm_open])
WITH_SAVE_ENV([
AC_SEARCH_LIBS([dbm_open], [gdbm_compat], [have_gdbm_compat=yes], [have_gdbm_compat=no])
])
fi

# Check for libdb >= 5 with dbm_open()
# db.h re-defines the name of the function
AC_CHECK_HEADERS([db.h], [
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